Thai ถาม

← Ahom 𑜌𑜪 (cognate)

← Ahom 𑜌𑜉𑜫 (mention)

← Ahom 𑜌𑜢𑜤𑜉𑜫 (mention)

← Lü ᦏᦱᧄ (cognate)

← Lao ຖາມ (cognate)

← Northern Thai ᨳᩣ᩠ᨾ (cognate)

← Shan ထၢမ် (cognate)

← Saek ถ่าม (cognate)

← Proto-Tai *c.raːmᴬ (inherited)

← Zhuang cam (cognate)

→ Lao ຖາມ (cognate)

→ Thai กระทู้ถาม (compound)

→ Zhuang cam (cognate)