Core sense — he protected him; he caused her to be chaste; he married hergenerated
4.1.1
Also: he (God), or it (a coat of mail or the like), protected, or defended, him.
4.1.2[Continence, or chastity, preserves from suspicion, or evil opinion]—العِفَّةُ تُحْصِنُ مِنَ الرِّيبَةِ
4.1.3who guarded her private parts from what is unlawful or indecorous—الَّتِى أَحْصَنَتْ فَرْجَهَا
In the Kur 21:91 and in the last verse of chapter 66. The meaning is: who abstained from what is unlawful or indecorous; who was continent, or chaste.
4.1.4he (her husband) caused the woman to be continent, or chaste—احصن المَرْأَةَ
He caused her to abstain from what is unlawful or indecorous. Also حَصَّنَهَا in the same sense.
[Marriage caused him to abstain from that which is unlawful and the like]—احصنهُ التَّزَوُّجُ
4.1.5and when they are married—فَإِذَا أُحْصِنَّ
[Also he married the woman; that is, he gave her in marriage.] See أُحْصِنَتْ above, in the first paragraph.
So some read in the Kur 4:30.
And a poet says: They married [their mother to their slave: such are the deeds of the mean, the base]
shāhidأَحْصَنُوا أُمَّهُمُ مِنْ عَبْدِهِمْتِلْكَ أَفْعَالُ القِزَامِ الوَكَعَهْ
Qur’ān 4:26 approximate — somewhere between 4:25 and 4:28 Lane cites “Kur iv. 30”
Qur’ān 4:25 located by this root inside the range Lane’s citation allows
وَمَن لَّمْ يَسْتَطِعْ مِنكُمْ طَوْلًا أَن يَنكِحَ ٱلْمُحْصَنَـٰتِ ٱلْمُؤْمِنَـٰتِ فَمِن مَّا مَلَكَتْ أَيْمَـٰنُكُم مِّن فَتَيَـٰتِكُمُ ٱلْمُؤْمِنَـٰتِ ۚ وَٱللَّهُ أَعْلَمُ بِإِيمَـٰنِكُم ۚ بَعْضُكُم مِّنۢ بَعْضٍ ۚ فَٱنكِحُوهُنَّ بِإِذْنِ أَهْلِهِنَّ وَءَاتُوهُنَّ أُجُورَهُنَّ بِٱلْمَعْرُوفِ مُحْصَنَـٰتٍ غَيْرَ مُسَـٰفِحَـٰتٍ وَلَا مُتَّخِذَٰتِ أَخْدَانٍ ۚ فَإِذَآ أُحْصِنَّ فَإِنْ أَتَيْنَ بِفَـٰحِشَةٍ فَعَلَيْهِنَّ نِصْفُ مَا عَلَى ٱلْمُحْصَنَـٰتِ مِنَ ٱلْعَذَابِ ۚ ذَٰلِكَ لِمَنْ خَشِىَ ٱلْعَنَتَ مِنكُمْ ۚ وَأَن تَصْبِرُوا۟ خَيْرٌ لَّكُمْ ۗ وَٱللَّهُ غَفُورٌ رَّحِيمٌIf any of you have not the means wherewith to wed free believing women, they may wed believing girls from among those whom your right hands possess: And Allah hath full knowledge about your faith. Ye are one from another: Wed them with the leave of their owners, and give them their dowers, according to what is reasonable: They should be chaste, not lustful, nor taking paramours: when they are taken in wedlock, if they fall into shame, their punishment is half that for free women. This (permission) is for those among you who fear sin; but it is better for you that ye practise self-restraint. And Allah is Oft-forgiving, Most Merciful.Abdullah Yusuf Ali, The Holy Qur’ān (1934)
4.2
أَحْصَنَتْ used intransitively: see form 1, in two places.
4.2.1and when they have become Muslim women—فَإِذَا أَحْصَنَّ
So some read in the Kur 4:30; according to Ibn-Mesʿood this is said of female slaves.
According to Aboo-Ḥaneefeh, الإِحْصَانُ in a case of stoning involves six conditions: being a Muslim woman, free, of sound intellect, of the age of puberty, validly married, and having had the marriage consummated. In a case of charging with adultery: being a Muslim woman, free, of sound intellect, of the age of puberty, and continent, or chaste.
Qur’ān 4:26 approximate — somewhere between 4:25 and 4:28 Lane cites “Kur iv. 30”
Qur’ān 4:25 located by this root inside the range Lane’s citation allows
وَمَن لَّمْ يَسْتَطِعْ مِنكُمْ طَوْلًا أَن يَنكِحَ ٱلْمُحْصَنَـٰتِ ٱلْمُؤْمِنَـٰتِ فَمِن مَّا مَلَكَتْ أَيْمَـٰنُكُم مِّن فَتَيَـٰتِكُمُ ٱلْمُؤْمِنَـٰتِ ۚ وَٱللَّهُ أَعْلَمُ بِإِيمَـٰنِكُم ۚ بَعْضُكُم مِّنۢ بَعْضٍ ۚ فَٱنكِحُوهُنَّ بِإِذْنِ أَهْلِهِنَّ وَءَاتُوهُنَّ أُجُورَهُنَّ بِٱلْمَعْرُوفِ مُحْصَنَـٰتٍ غَيْرَ مُسَـٰفِحَـٰتٍ وَلَا مُتَّخِذَٰتِ أَخْدَانٍ ۚ فَإِذَآ أُحْصِنَّ فَإِنْ أَتَيْنَ بِفَـٰحِشَةٍ فَعَلَيْهِنَّ نِصْفُ مَا عَلَى ٱلْمُحْصَنَـٰتِ مِنَ ٱلْعَذَابِ ۚ ذَٰلِكَ لِمَنْ خَشِىَ ٱلْعَنَتَ مِنكُمْ ۚ وَأَن تَصْبِرُوا۟ خَيْرٌ لَّكُمْ ۗ وَٱللَّهُ غَفُورٌ رَّحِيمٌIf any of you have not the means wherewith to wed free believing women, they may wed believing girls from among those whom your right hands possess: And Allah hath full knowledge about your faith. Ye are one from another: Wed them with the leave of their owners, and give them their dowers, according to what is reasonable: They should be chaste, not lustful, nor taking paramours: when they are taken in wedlock, if they fall into shame, their punishment is half that for free women. This (permission) is for those among you who fear sin; but it is better for you that ye practise self-restraint. And Allah is Oft-forgiving, Most Merciful.Abdullah Yusuf Ali, The Holy Qur’ān (1934)
4.2.2he (a man) married, or took a wife—أحْصَنَ
With the lawyers, إِحْصَانٌ means the consummation of a valid marriage; and according to Esh-Sháfiʿee, by a free man who has reached puberty, and in the case of a free woman who has reached puberty, among the Muslims and among those who believe in a plurality of gods — that is, in a case of valid marriage.
Qur’ānic occurrences Form 4
4:25
وَمَن لَّمْ يَسْتَطِعْ مِنكُمْ طَوْلًا أَن يَنكِحَ ٱلْمُحْصَنَـٰتِ ٱلْمُؤْمِنَـٰتِ فَمِن مَّا مَلَكَتْ أَيْمَـٰنُكُم مِّن فَتَيَـٰتِكُمُ ٱلْمُؤْمِنَـٰتِ ۚ وَٱللَّهُ أَعْلَمُ بِإِيمَـٰنِكُم ۚ بَعْضُكُم مِّنۢ بَعْضٍ ۚ فَٱنكِحُوهُنَّ بِإِذْنِ أَهْلِهِنَّ وَءَاتُوهُنَّ أُجُورَهُنَّ بِٱلْمَعْرُوفِ مُحْصَنَـٰتٍ غَيْرَ مُسَـٰفِحَـٰتٍ وَلَا مُتَّخِذَٰتِ أَخْدَانٍ ۚ فَإِذَآ أُحْصِنَّ فَإِنْ أَتَيْنَ بِفَـٰحِشَةٍ فَعَلَيْهِنَّ نِصْفُ مَا عَلَى ٱلْمُحْصَنَـٰتِ مِنَ ٱلْعَذَابِ ۚ ذَٰلِكَ لِمَنْ خَشِىَ ٱلْعَنَتَ مِنكُمْ ۚ وَأَن تَصْبِرُوا۟ خَيْرٌ لَّكُمْ ۗ وَٱللَّهُ غَفُورٌ رَّحِيمٌIf any of you have not the means wherewith to wed free believing women, they may wed believing girls from among those whom your right hands possess: And Allah hath full knowledge about your faith. Ye are one from another: Wed them with the leave of their owners, and give them their dowers, according to what is reasonable: They should be chaste, not lustful, nor taking paramours: when they are taken in wedlock, if they fall into shame, their punishment is half that for free women. This (permission) is for those among you who fear sin; but it is better for you that ye practise self-restraint. And Allah is Oft-forgiving, Most Merciful.
12:48
ثُمَّ يَأْتِى مِنۢ بَعْدِ ذَٰلِكَ سَبْعٌ شِدَادٌ يَأْكُلْنَ مَا قَدَّمْتُمْ لَهُنَّ إِلَّا قَلِيلًا مِّمَّا تُحْصِنُونَ"Then will come after that (period) seven dreadful (years), which will devour what ye shall have laid by in advance for them,- (all) except a little which ye shall have (specially) guarded.
21:80
وَعَلَّمْنَـٰهُ صَنْعَةَ لَبُوسٍ لَّكُمْ لِتُحْصِنَكُم مِّنۢ بَأْسِكُمْ ۖ فَهَلْ أَنتُمْ شَـٰكِرُونَIt was We Who taught him the making of coats of mail for your benefit, to guard you from each other's violence: will ye then be grateful?
21:91
وَٱلَّتِىٓ أَحْصَنَتْ فَرْجَهَا فَنَفَخْنَا فِيهَا مِن رُّوحِنَا وَجَعَلْنَـٰهَا وَٱبْنَهَآ ءَايَةً لِّلْعَـٰلَمِينَAnd (remember) her who guarded her chastity: We breathed into her of Our spirit, and We made her and her son a sign for all peoples.
66:12
وَمَرْيَمَ ٱبْنَتَ عِمْرَٰنَ ٱلَّتِىٓ أَحْصَنَتْ فَرْجَهَا فَنَفَخْنَا فِيهِ مِن رُّوحِنَا وَصَدَّقَتْ بِكَلِمَـٰتِ رَبِّهَا وَكُتُبِهِۦ وَكَانَتْ مِنَ ٱلْقَـٰنِتِينَAnd Mary the daughter of 'Imran, who guarded her chastity; and We breathed into (her body) of Our spirit; and she testified to the truth of the words of her Lord and of His Revelations, and was one of the devout (servants).
Occurrences of this form in the Qur’ān, not Lane’s choice of verse. They show the word in use; they do not say which sense above applies. Where more occur than are shown, the shortest āyāt are chosen.
Show Lane's original text
: see 2. Also He, (God,) or it, (a coat of mail [or the like],) protected, or defended, him. (Fr, Mgh, * TA.) العِفَّةُ تُحْصِنُ مِنَ الرِّيبَةِ [Continence, or chastity, preserves from suspicion, or evil opinion]. (Mgh.) الَّتِى أَحْصَنَتْ فَرْجَهَا , in the Kur [xxi. 91 and lxvi. last verse], means Who preserved her pudendum from that which is unlawful or indecorous; (Zj, Mgh, * TA;) who abstained from what is unlawful or indecorous; or was continent, or chaste. (Msb.) احصن المَرْأَةَ He (her husband) caused the woman to abstain from that which is unlawful or indecorous, or to be continent or chaste; (S, Mgh, K; *) as also حَصَّنَهَا . (K.) And احصنهُ التَّزَوُّجُ [Marriage caused him to abstain from that which is unlawful &c.]. (K.) [Also He married the woman; i. e. gave her in marriage.] See أُحْصِنَتْ above, in the first paragraph. In the Kur iv. 30, some read فَإِذَا أُحْصِنَّ , meaning And when they are married. (S, TA.) And a poet says, 1 i. e. They married [their mother to their slave: such are the deeds of the mean, the base]. (S.) أَحْصَنُوا أُمَّهُمُ مِنْ عَبْدِهِمْ | تِلْكَ أَفْعَالُ القِزَامِ الوَكَعَهْ أَحْصَنَتْ , intrans.: see 1, in two places. In the Kur iv. 30, some read فَإِذَا أَحْصَنَّ ; and accord. to Ibn-Mes'ood, this, said of female slaves, means And when they are Muslimehs. (TA.) Accord. to Aboo-Haneefeh, الإِحْصَانُ in a case of stoning involves six conditions; The being a Muslimeh, and free, and of sound intellect, and of the age of puberty, and validly married, and having had her marriage consummated: and in a case of charging with adultery, the being a Muslimeh, and free, and of sound intellect, and of the age of puberty, and continent, or chaste. (Mgh.) And أحْصَنَ He (a man, S, Msb) married, or took a wife. (S, Msb, K.) With the lawyers, إِحْصَانٌ means The act of coïtus conjugalis in a case of valid marriage; and accord. to Esh-Sháfi'ee, by a free man who has attained to puberty, and in the case of a free woman who has attained to puberty, among the Muslims and the believers in a plurality of gods; meaning, in a case of valid marriage. (Msb.)