Where does “узу” come from?

узу (Tabasaran) comes from Proto-Lezghian *zon, from Proto-North Caucasian zō.

Ancestry of “узу”, step by step

StepLanguageWordMeaning
1Proto-Lezghian*zon—
2Proto-North Caucasianzō—
Every word from Proto-North Caucasian zō →Every word from Proto-Lezghian *zon →