تَغَابُنٌ

signifies Mutual غَبْن [i. e. cheating or endamaging or overcoming in selling and buying: and ↓ مُغَابَنَةٌ signifies the same; or mutual endeavoring to cheat &c: see 3 in art زبن]. (S, MA, K, KL, TA.) Hence, يَوْمُ التَّغَابُنِ [in the Qur'an, 64:9, an appellation of The day of resurrection; because the people of Paradise will then overreach (تَغْبِنُ) the people of Hell, (S, K, TA,) by the state of enjoyment in which the former will become and the punishment which the latter will experience; or, as El-Hasan says, because the former will attribute defect, or imperfection, to the intellects of the latter by reason of the preferring infidelity to faith. (TA.)

And تغابن له [i. e. لَهُ, but this, I think, is probably a mistranscription for بِهِ,] signifies تَقَاعَدَ [i. e. تقاعد بِهِ, meaning He did not pay him his due,] حَتَّى غُبِنَ [so that he was cheated or endamaged or overcome]. (TA.)