Vietnamese trăn

← Bahnar klăn (cognate)

← Car Nicobarese tu-lān (cognate)

← Khmer ថ្លាន់ (cognate)

← Middle Vietnamese tlan (inherited)

← Proto-Mon-Khmer *t₁lan (inherited)

← Proto-Vietic *k-lən (inherited)

← Mon ကၠန် (cognate)

← Muong tlăn (cognate)

← Pacoh tulán (cognate)

→ Khmer ថ្លាន់ (cognate)

→ Vietnamese thằn lằn (mention)

→ Vietnamese rắn (mention)

→ Vietnamese chằn (mention)

→ Chinese 辰 (cognate)

→ Mang lan⁶ (cognate)