TgIIChron 35:27 :ופתגמוהי קדמאין מא דעבד בינקותיה ובתראי מא דעבד בעולימותיה‏ : his early acts that he did in his childhood and the later ones that he did in his youth
See the entire entry for yanqū, yanqūṯā n.f. childhood, youth