From Middle Chinese 豆 (MC duwH, “bean”). Cognate with Thai ถั่ว (tùua), Lao ຖົ່ວ (thūa), Tai Dam ꪖ꪿ꪺ, Shan ထူဝ်ႇ (thò).
ᦷᦏᧈ • (ṫho¹)