Akkadian

ūsu - duck (CAD U–W 282, AHw. 1438)

The term is often thought to be borrowed from Sum. UZ, but the Sum. term itself is likely to be an early Semitism (as suggested in Landsberger 1966: 257, cf. also Salonen 1973: 288-9).

PS
*ˀa/iw(a)z-, *waz(z)- - goose (SED II No. 22, DRS 12)