رعظ

رُعْظٌ ذ The socket of the head of an arrow, or place into which the head enters, over which are the twists of sinew: pl. أَرْعَاظٌ. (Lth, S, K.) It is said in a prov., اـِنَّ فُلَانًا لَيَكْسِرُ عَلَيْكَ أَرْعَاظَ النَّبْلِ [ Verily such a one breaks against thee the sockets of the heads of the arrows ]: applied to him whose anger is vehement: as though one said, when he takes the arrow, (K, TA,) being vehemently angry, (TA,) he strikes the ground with its point, in his silent wrath, with such vehemence as to break the socket of its head: or it means (tropical:) he grates the teeth at thee, (K, TA,) by reason of the vehemence of his anger, so that their sockets break; (TA;) the sockets of the dog-teeth being thus likened to the sockets of arrow-heads: (K, TA:) so in the O and L. (TA.) And it is said in another prov., مَا قَدَرْتُ عَلَى كَذَا حَتَّى تَعَطَّفَتْ عَلَىَّ أَرْعَاظُ النَّبْلِ [ I was not able to do such a thing until the sockets of the heads of the arrows became much bent against me ]. (O, K.)