sông Cái

Etymology
🇰🇲, literally "mother river", or, 🇰🇲, means "Great River"; both interpretations might be correct, because both meanings are from the same etymology. This word was transliterated by the French as and.

This was the original name of the Red River, but later used to refer to many other rivers of Vietnam. May be related to other Vietnamese river names such as, , , , and.

For some semantic parallels, compare, , , (where  is a phonogram used to write the native Korean morpheme for "big", see ).