Where does “ບໍ່ແກ້ວ” come from?

ບໍ່ແກ້ວ (Lao) comes from Lao ບໍ່, from Proto-Tai ɓoːᴮ — well; spring.

Ancestry of “ບໍ່ແກ້ວ”, step by step

ບໍ່ແກ້ວ traces back through two separate lines of ancestry.

via Lao ບໍ່

StepLanguageWordMeaning
1Laoບໍ່no, not (used to form negatives)
2Proto-Taiɓoːᴮwell; spring

via Lao ແກ້ວ

StepLanguageWordMeaning
1Laoແກ້ວbottle
Every word from Proto-Tai ɓoːᴮ →Every word from Lao ບໍ່ →