Pnar bu

← Proto-Khasian *buː (inherited)

← Khmer បៅ (cognate)

← Proto-Mon-Khmer *ʔbuuʔ (derived)

← Mon မဴ (cognate)

← Old Mon 'bow (cognate)

← Pnar ymbu (mention)

← Vietnamese bú (cognate)

→ Pnar ymbu (mention)

→ Vietnamese bú (cognate)