Hebrew

dōd - paternal uncle (HALOT 215)

exact meaning clear from 1 Samuel 14.50–51

PS
*dād- - paternal uncle (Kogan 2014: 93)
An eventual relationship with Akk. dādu ‘love-making; object of love, darling, favorite’, Hbr. dōd ‘beloved; love’ is also conceivable