PS

*kVS- - a (mythical) aquatic reptile (SED II No. 120)

Akkadian
kušû - an aquatic animal (CAD K 602, AHw. 517)
Geez
kaysi - serpent, dragon (CDG 301, LLA 870, SLLA 268)
Tigre
käyəs - snake, dragon (WTS 422)
Tigrinya
käysi - snake, serpent; cunning, wily person (TED 1680)