TgO Gen21:20 :וַהֲוָה רָביָאקַשָתָא‏ : the lad became a bowman
See the entire entry for qaššāṯ, qaššāṯā n.m. bowman

TgO Gen21:20 :וַהֲוָה רָבֵי קַשָתָא‏ : †
See the entire entry for rby#4 vb. to shoot (a bow)