ترنتُرْنَى an appellation applied to A female slave; (T, K) and to a fornicatress, an adulteress, or a prostitute; (M, K;) as also فَرْتَنَى: (T, K:) and اِبْنُ تُرْنَى means the son of a fornicatress or an adulteress or a prostitute; (T, K;) as also ابن فَرْتَنَى: (T:) or one that is base-born: (S in art. رنو:) but it is said that تُرْنَى is of the measure تُفعَلُ, from الرُّنُوُّ: (M:) it may be from رُنِيَتْ meaning “ she was looked at continuously. ” (T, K.)