käz = hand
alternate spelling: kaez
Some things Google found for similar "kaz":
Kaz is an uncommon usually masculine first name. Kaz is a unusual to uncommon last name. In Czech kaz means flaw. In Turkish kaz means goose. Kaz is the name of a places in Russia and Kyrgyzstan.
Word derivation for "hand" :
Hungarian = kéz
Finnish = käsi
Samgur = käz