Where does “giái” come from?

giái (Vietnamese) comes from Vietnamese trái, from Proto-Vietic p-laːs, from Proto-Mon-Khmer laas — to spread; to extend.

Ancestry of “giái”, step by step

StepLanguageWordMeaning
1Vietnamesetráileft; reverse; morally wrong, unreasonable,...
2Proto-Vieticp-laːsfathom
3Proto-Mon-Khmerlaasto spread; to extend

Words derived from “giái”

Every word from Proto-Mon-Khmer laas →Every word from Proto-Vietic p-laːs →Every word from Vietnamese trái →
giái — Etymology, Origin & Word History | Etymology Explorer