Where does “lá nón” come from?

lá nón (Vietnamese) comes from Vietnamese nón, from Proto-Vietic k-nɔːn, from Proto-Vietic kɔːn, from Proto-Mon-Khmer kuun — child.

Ancestry of “lá nón”, step by step

StepLanguageWordMeaning
1VietnamesenónAsian conical hat; hat; cap; helmet
2Proto-Vietick-nɔːn—
3Proto-Vietickɔːnchild
4Proto-Mon-Khmerkuunchild
Every word from Proto-Mon-Khmer kuun →Every word from Proto-Vietic kɔːn →Every word from Proto-Vietic k-nɔːn →