Where does “puːʔ” come from?

puːʔ (Proto-Vietic) comes from Proto-Mon-Khmer ʔbuuʔ — to suck at the breast, to suckle.

Ancestry of “puːʔ”, step by step

StepLanguageWordMeaning
1Proto-Mon-Khmerʔbuuʔto suck at the breast, to suckle
Every word from Proto-Mon-Khmer ʔbuuʔ