Where does “ŋo” come from?

ŋo (Galo) comes from Proto-Sino-Tibetan ŋa, from Proto-Sino-Tibetan l/b-ŋa — five.

Ancestry of “ŋo”, step by step

StepLanguageWordMeaning
1Proto-Sino-TibetanŋaI
2Proto-Sino-Tibetanl/b-ŋafive
Every word from Proto-Sino-Tibetan l/b-ŋa →Every word from Proto-Sino-Tibetan ŋa →
ŋo — Etymology, Origin & Word History | Etymology Explorer