رءس

8 ارتأس الشَّىْءَ ذ He, or it, became mounted, or fixed, upon the head of the thing. (M, TA. *) In the saying, يَرْتَاسُ السِّنَانَ فَيُقْتَلُ [ He becomes fixed upon the point of the spear-head, and is slain ], in a verse cited by Th, يَرْتَاسُ is for يَرْتَئِسُ. (M.) -A2- See also 5. -A3- ارتأس زَيْدًا He took Zeyd by the neck, and lowered it to, or towards, the ground. (K, from the “ Nawádir el-Aaráb. ”) ― -b2- Hence, (assumed tropical:) He occupied Zeyd so as to divert his attention: (K, from the same:) and اِكْتَاسَهُ and اِرْتَكَسَهُ and اِعْتَكَسَهُ also signify the same [app. in the former sense, or perhaps in both senses.] (TA, from the same.)