Tai Dam ꪵꪜꪒ

← Ahom 𑜆𑜢𑜄𑜫 (cognate)

← Lü ᦶᦔᧆᧈ (cognate)

← Lao ແປດ (cognate)

← Bouyei beedt (cognate)

← Shan ပႅတ်ႇ (cognate)

← Proto-Tai *peːtᴰ (inherited)

← Tai Nüa ᥙᥦᥖᥱ (cognate)

← Thai แปด (cognate)

← Zhuang bet (cognate)

→ Lao ແປດ (cognate)

→ Saek เป̄ด (cognate)

→ Thai แปด (cognate)

→ Zhuang bet (cognate)