حنث1 حَنِثَ فِى يَمِينِهِ, (S, A, Msb, K, *) aor. ـَ (Msb, K,) inf. n. حِنْثٌ (S, * A, Msb, K *) and حَنَثٌ, (TA,) He violated, or broke, or failed of performing, his oath: (A, Msb, K, TA:) he was untrue in his oath: (S, TA:) he committed a sin, or crime, in his oath. (TA.) Also He retracted, or revoked, his oath. (TA.) b2:  And the verb alone, He said what was not true. (Khálid Ibn-Jembeh, TA.) b3:  He inclined from what was false to what was true: or from what was true to what was false. (K.) b4:  [And app. (assumed tropical:)  He committed a sin, or crime: a meaning which seems to be indicated in the K: see حِنْثٌ, below.]2 حنْثهُ He pronounced him (جَعَلَهُ) a violator, or non-performer, of his oath: (Msb:) [a verb similar to أَثَّمَهُ and فَسَّقَهُ &c.]4 أَحْنَثْتُهُ (S, K) فِى يَمِينِهِ (S) I made him to violate, or break, or fail of performing, his oath. (S, K. *) b2:  احنث فُلَانٌ قَسَمَ فُلَانٍ Such a one assented not, or consented not, to the conjurement of such a one; contr. of أَبَرَّ. (T and TA in art. بر.) 5 تحنّث (assumed tropical:)  He put away, or cast away, from himself الحِنْث, i. e. sin, or crime: (ISd, Towsheeh, TA:) it is said that there are only six verbs of the measure of this signifying the putting away, or casting away, from oneself a thing, [i. e. the thing denoted by the root,] which are تحنّث and تأثّم and تحوّب and تحرّج and تنجّس and تهجّد: (TA:) (assumed tropical:)  he did a work whereby to escape from sin, or crime: (IAar, Msb:) (assumed tropical:)  he applied himself to acts, or exercises, of devotion; (S, A, Msb, K;) accord. to Ez-Zuhree and the K, during numerous nights; but it has been shown by the Expositors of El-Bukháree, and others, that this addition is taken from words following the verb in the explanation of a trad., and has nothing to do with the meaning of the verb itself: (MF, TA:) (assumed tropical:)  he relinquished [the worship of] idols; (S, K;) like تحنّف; (S;) and it may be that the ث in this verb is interchangeable with ف, (A,) or a substitute for ف. (TA.) You say also, تحنّث مِنْ كَذَا (tropical:)  He abstained from such a thing as a sin, or crime; syn. تأثّم, (S, A, K,) and تحرّج. (A.) And تحنّث بِأَفْعَالٍ (assumed tropical:)  He sought to bring himself near unto God, or to advance himself in God's favour, by works [of devotion &c.]. (TA.) حِنْثٌ The violation, or failure of performance, of an oath: (S, A, K, TA:) [an inf. n. used as a simple subst.:] pl. أَحْنَاثٌ; as in the saying, عَلَيْهِ أَحْنَاثٌ كَثِيرَةٌ [He is accountable for, or chargeable with, many violations, or failures of performance, of oaths]. (TA.) b2:  (tropical:)  A sin, a crime, an offence, or an act of disobedience. (S, A, Msb, K.) So in the saying [in the Kur lvi. 45], وَكَانُوا يُصِرُّونَ عَلَى الحِنْثِ العَظِيمِ (tropical:)  [And they persisted in great sin]; (A;) meaning belief in a plurality of gods. (Bd, Jel.) and hence, (Bd in lvi. 45,) بَلَغَ الحِنْثَ (tropical:)  He (a boy) attained to the age when he was punishable for sin: (A, * Bd:) or attained to [the age when he became punishable for] disobedience and [rewardable for] obedience: (S:) or attained to the age when the pen [of the recording angels] began to register his acts of obedience and of disobedience: attained to the age of puberty: attained to manhood. (TA.) [Hence also,] أَوْلَادُ الحِنْثِ (assumed tropical:)  The children of adultery or fornication: occurring  in a trad., accord. to one reading: accord. to another reading, اولاد الخُبْثِ. (L.) حَانِثٌ Violating, or failing to perform, his oath; or a violator, or non-performer, of his oath. (Msb.) مَحْنَثٌ: see مَحَانِثُ.مُحْنِثٌ A thing respecting which people differ, and which admits of its being regarded in two different ways; as also مُحْلِفٌ. (L.) [So called because it may make one to be untrue in an oath.]مَحَانِثُ, accord. to some, having no sing.; but accord. to others, its sing. is ↓ مَحْنَثٌ, and this is app. the truth, and is agreeable with analogy; (MF;) Places [i. e. occasions] of falling into the violation of an oath or oaths, or (assumed tropical:)  into sin or crime; expl. by مَوَاقِعُ حِنْثٍ (TA) and مَوَاقِعُإِثْمٍ. (K.)