اشتجر
1.
It was, or became, knit, or connected, together, one part with another; as also اِشْتَبَكَ: it was, or became, commingled, one part amid, or within, another; (TA;) and so
تشاجر: (Ham p. 161:) it was, or became, intricate, complicated, perplexed, confused, or intricately intermixed. (TA: see 1, first sentence.) It is said in a tradition, relating to conflict and faction (فِتْنَة), يَشْتَجِرُونَ فِيهَا اشْتِجَارَ أَطْبَاقِ الرَّأْسِ
They become knit together therein, like the knitting together of the bones of the head that interjoin, one with another, one entering into another: or the meaning is, they disagree, or differ, one with another. (TA.) You say, اشتجروا بِرِمَاحِهِمْ (TA) and بِهَا
تشاجروا (S, A, Msb, TA) They became knit together, or commingled, one with another, [in conflict,] with their spears: (TA:) or they thrust, or pierced, one another with their spears. (S, A, Mgh, Msb, TA.) And اشتجروا (Zj, S, A, Msb, K) and
تشاجروا (Zj, S, A, Mgh, K) They became commingled, or confused, or embroiled, disagreeing, or differing: (Zj, TA:) they contended, or disputed, together; (S, A, Mgh, Msb;) or disagreed, or differed. (S, * A, * Mgh, Msb, * K.)
4.
5.
[And, said of a horse, He was bridled, reined, or curbed: (Freytag, from the Deewán of the Hudhalees:) or perhaps the verb in this sense is in the passive form:]
6.
see 1, last sentence but two.