Bouyei jais

← Ahom 𑜁𑜩 (cognate)

← Lü ᦺᦃᧈ (cognate)

← Southern Kam geiv (cognate)

← Lao ໄຂ່ (cognate)

← Northern Thai ᨡᩱ᩵ (cognate)

← Shan ၶႆႇ (cognate)

← Sui geis (cognate)

← Proto-Tai *qraj (inherited)

← Thai ไข่ (cognate)

← Zhuang gyaeq (cognate)

→ Thai ไข่ (cognate)