Vietnamese u

← Proto-Vietic *ʔuː (inherited)

← Portuguese u (derived)

← Vietnamese mẹ (link)

← Vietnamese mợ (link)

← Vietnamese mạ (link)

← Vietnamese má (link)

← Vietnamese ung thư (link)

→ Vietnamese TW (mention)

→ Vietnamese mạ (link)

→ Vietnamese u buồn (compound)