فَتَاءٌ
[mentioned in the first sentence of this article as a verbal noun] Youth, or youthfulness; or the prime of life; (T, S, M, K;) and so
فُتَوَّةٌ, (T, M,) as a subst. from فَتًى and from فَتِىٌّ: (M:) or the latter is used in relation to human beings; and the former, to camels [and the like], and also, metaphorically, to human beings: (T:) one says, قَدْ وُلِدَ فِى فَتَاءِ سِنِّهِ أَوْلَادٌ [Children had, or have, been born to him in the youthfulness, or prime, of his age]. (S.)