نصى5 تَنَصَّى بَنِى فُلاَنٍ: see تَذَرَّى.نَصِىٌّ A certain plant: (S, TA:) Golius says, a species of thistle; but this seems to be inconsistent with the description of it: see رَيِّجَةٌ. b2: خَصِىٌّ نَصِيٌّ Gelded, castrated. The second word is an imitative sequent.نَاصِيَةٌ properly, in the language of the [classical] Arabs, The place where the hair grows in the fore part of the head: and hence, the hair of that part; the hair over the forehead; (Az, TA;) [and this is the general meaning;) i. q.  قُصَّةٌ and طُرَّةٌ. (Msb, art. قص.) The forelock of a horse. b2:  نَاصِيَةُ بَنِى فُلاَنٍ: see تَذَرَّى and ذِرْوَةٌ.