Core sense — a vow; a great bet; death; a term, or period of lifegenerated
1.1he died; or he was slain in an expedition undertaken for the sake of God's religion—قَضَى نَحْبَهُ
Originally it means: he fulfilled his vow; see the Qur'ān 33:23 — as though he had bound himself by a vow to fight until he died.
Or it means: he ended his term, or period of life; he ended his days. [Or he finished his time: (as implied in the S): or he yielded his soul: or he accomplished his want:] from the meanings given below.
1.2a great bet, or wager—نَحْبٌ
So in this verse of Jereer: [In Tikhfeh we contended with the sword with the kings; and our horses, in the evening of Bistám, ran for a great bet]
shāhidبِطِخْفَةَ جَالَدْنَا المُلُوكَ وَخَيْلُنَاعَشِيَّةَ بِسْطَامٍ جَرَيْنَ عَلَى نَحْبِ
Synonym: خَطَرٌ عَظِيمٌ.
1.3a proof, a demonstration, an evidence—نَحْبٌ
Synonym: بُرْهَانٌ.
1.4
A necessity; a want; a needful thing; an object of want or need. Synonym: حَاجَةٌ. See قَضَى نَحْبَهُ.
1.5figurative · مجاز
Death. See قَضَى نَحْبَهُ above.
1.6
A term; a fixed period; the period of life. See قَضَى نَحْبَهُ above.
1.7
The soul. Synonym: نَفْسٌ.
1.8
Mind; purpose; aspiration; desire; ambition. Synonym: هِمَّةٌ.
2a laborious journey—خِمْسٌ نَحْبٌ
Synonym: دَائِبٌ.
2.1figurative · مجازa quick pace, or journey—سَيْرٌ نَحْبٌ
a quick pace, or journey—سير مُنَحِّبٌ
2.2
The same adjectives are applied in the same sense to a man.
2.3a quick, or light, pace or manner of travelling, with much effort and persistence—نَحْبٌ
2.4such a one went on, or journeyed, with energy—سَارَ فُلَانٌ عَلَى نَحْبٍ
Literally, for a great bet — as though he had laid a great bet and so exerted himself.
2.6a long day—يوم نحب
So in the TA; perhaps يَوْمُ نَحْبٍ, but more probably يَوْمٌ نَحْبٌ. (Er-Riyáshee.)
2.7a space of time; a time—نَحْبٌ
See قَضَى نَحْبَهُ above.
2.8
Sleep. Synonym: نَوْمٌ. In some copies of the K, يَوْمٌ.
2.10
The same as شِدَّةٌ [violence, force, and the like: or distress, difficulty, hardship, and the like].
2.11
A game of chance. Synonym: قِمَارٌ.
3
A great camel. Perhaps a mistake for نَجْبٌ.
Qur’ānic occurrences نَحْب
33:23
مِّنَ ٱلْمُؤْمِنِينَ رِجَالٌ صَدَقُوا۟ مَا عَـٰهَدُوا۟ ٱللَّهَ عَلَيْهِ ۖ فَمِنْهُم مَّن قَضَىٰ نَحْبَهُۥ وَمِنْهُم مَّن يَنتَظِرُ ۖ وَمَا بَدَّلُوا۟ تَبْدِيلًاAmong the Believers are men who have been true to their covenant with Allah: of them some have completed their vow (to the extreme), and some (still) wait: but they have never changed (their determination) in the least:
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
A vow. (S, K.) قَضَى نَحْبَهُ He died: or he was slain in an expedition undertaken for the sake of God's religion: originally meaning he accomplished his vow: see Kur, xxxiii. 23: (Msb:) as though he had constrained himself [by a vow] to fight until he died: (TA:) or it signifies he ended his term, or period of life; ended his days: (Fr, Zj:) [or he finished his time: (as implied in the S): or he yielded his soul: or he accomplished his want:] from significations given below. (TA.) نَحْبٌ A great bet, or wager: syn. خَطَرٌ عَظِيمٌ . (K.) So in the following verse of Jereer: 1 [In Tikhfeh we contended with the sword with the kings; and our horses, in the evening of Bistám, ran for a great bet]. (TA.) بِطِخْفَةَ جَالَدْنَا المُلُوكَ وَخَيْلُنَا | عَشِيَّةَ بِسْطَامٍ جَرَيْنَ عَلَى نَحْبِ نَحْبٌ A proof; a demonstration; an evidence: syn. بُرْهَانٌ . (K.) A necessity; want; needful thing; an object of want or need: syn. حَاجَةٌ . (K.) See قَضَى نَحْبَهُ . Death. (K.) See قَضَى نَحْبَهُ , above. A term; fixed period; the period of life. (K.) See قَضَى نَحْبَهُ , above. The soul: syn. نَفْسٌ . (AO, K.) Mind; purpose; aspiration; desire; ambition: syn. هِمَّةٌ . (K.) خِمْسٌ نَحْبٌ A laborious journey: syn. دَائِبٌ . (S.) سَيْرٌ نَحْبٌ , (TA,) and سير مُنَحِّبٌ (K) A quick pace, or journey. (K, TA.) The same epithets are likewise applied, in the same sense, to a man. (TA.) نَحْبٌ A quick (or light, K,) pace, or mode of going, travelling, or journeying, (AA, S, K,) with much exertion and perseverance. (TA.) سَارَ فُلَانٌ عَلَى نَحْبٍ Such a one went on, travelled, or journeyed, with energy; [lit., for a great bet, or wager;] as though he had laid a [great] bet, and therefore strove, or exerted himself. (S.) نَحْبٌ Length. (AA, K.) يوم نحب [so in the TA: perhaps, يَوْمُ نَحْبٍ , but more probably يَوْمٌ نَحْبٌ ] A long day. (Er-Riyáshee.) نَحْبٌ A space of time: a time. (S, K.) See قَضَى نَحْبَهُ , above. Sleep: syn. نَوْمٌ . (L, K: in some copies of the K, يَوْمٌ TA.) Fatness. (K.) I. q. شِدَّةٌ [Vehemence; violence; &c.: or distress; difficulty; adversity; &c.]. (K.) A game of hazard: syn. قِمَارٌ . (K.) A great camel. (K.) Perhaps a mistake for نَجْبٌ . (TA.)