Core sense — he made it much, abundant, or numerous; he multiplied it; he became richgenerated
4.1he made it much, abundant, or numerous; he multiplied it—كثّرهُ
This form has the same meaning as the form 4 verb; its maṣdar is تَكْثِيرٌ.
4.1.1I did the thing much—أَكْثَرْتُ مِنَ الشَّىْءِ
I did the thing much—استكثرتُ مِنْهُ
Both are equivalent to أَكْثَرْتُ فِعْلَهُ; literally, I made the doing of it much.
I ate, and the like, much—أَكْثَرْتُ مِنَ الأَكْلِ وَنَحْوِهِ
According to the Koofees this is a case of pleonasm, [standing for أَكْثَرْتُ الأَكْلَ وَنَحْوَهُ]; according to the Basrees it specifies the vague meaning of the verb, the object being left out, the full phrase being أَكْثَرْتُ الفِعْلَ مِنَ الأَكْلِ, and so in similar cases.
[He spoke, or talked, much; he was profuse in speech.]—أَكْثَرَ فِى الكَلَامِ
[He occupied himself much in the affair.]—كَثُرَ فِى الأَمْرِ
4.1.2[He brought, or he did, or he said, much.]—اكثر
Used as an intransitive verb, equivalent to أَتَى بِكَثِيرٍ.
4.1.3
Also: he became rich; he abounded in property; his property became much, or abundant.
4.2it (a palm-tree) put forth its spadix—اكثر
That is, its طَلْع [or spadix], its كَثَر, from which the verb comes.
4.3How abundant is his wealth! or how numerous are his cattle!—مَا أَكْثَرَ مَالَهُ
Qur’ānic occurrences Form 4
11:32
قَالُوا۟ يَـٰنُوحُ قَدْ جَـٰدَلْتَنَا فَأَكْثَرْتَ جِدَٰلَنَا فَأْتِنَا بِمَا تَعِدُنَآ إِن كُنتَ مِنَ ٱلصَّـٰدِقِينَThey said: "O Noah! thou hast disputed with us, and (much) hast thou prolonged the dispute with us: now bring upon us what thou threatenest us with, if thou speakest the truth!?"
89:12
فَأَكْثَرُوا۟ فِيهَا ٱلْفَسَادَAnd heaped therein mischief (on mischief).
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
He made it much, abundant, many, or numerous, he multiplied it; as also كثّرهُ , (Msb, K, TA,) inf. n. تَكْثِيرٌ . (K.) أَكْثَرْتُ مِنَ الشَّىْءِ and استكثرتُ مِنْهُ signify the same; (S, Msb;) i. e., أَكْثَرْتُ فِعْلَهُ [I did the thing much; lit., I made the doing of it much]: or أَكْثَرْتُ مِنَ الأَكْلِ وَنَحْوِهِ [I ate, and the like, much] presents an instance of pleonasm, [being for أَكْثَرْتُ الأَكْلَ وَنَحْوَهُ ,] accord. to the opinion of the Koofees: or it is an instance of explication [of the vague signification of the verb], accord. to the opinion of the Basrees; the objective complement being suppressed, and the complete phrase being أَكْثَرْتُ الفِعْلَ مِنَ الأَكْلِ : and so in the like cases. (Msb.) [You say also أَكْثَرَ فِى الكَلَامِ He spoke, or talked, much; was profuse, or immoderate, in speech, or talk. And in like manner, كَثُرَ فِى الأَمْرِ He did, acted, or occupied himself, much in the affair.] اكثر [as an intrans. v.] signifies أَتَى بِكَثِيرٍ [He brought, or he did, or he said, much]. (K.) Also, [He became rich; he abounded in property;] his property became much, or abundant. (S, Msb, K.) اكثر It (a palm-tree) produced, or put forth, its طَلْع [or spadix], (S, K,) i. e., its كَثَر , whence the verb. (TA.) [ مَا أَكْثَرَ مَالَهُ How abundant is his wealth! or how numerous are his cattle!]