Inherited from Proto-Southwestern Tai *zaːwᴬ⁴ (“twenty”) (Jonsson, 1991). Cognate with Lao ຊາວ (sāo), Isan ซาว, Northern Thai ᨪᩣ᩠ᩅ, Lü ᦌᦱᧁ (saaw), Shan သၢဝ်း (sáao), Ahom 𑜏𑜧 (saw).
ᥔᥣᥝᥰ (säaw) (1963 orthography ᥔᥣᥝ̈)