From Proto-Southwestern Tai *sɯəᴬ (“tiger”). Cognate with Northern Thai ᩈᩮᩬᩥᩋ, Lao ເສືອ (sư̄a), Khün ᩈᩮᩬᩧ, Lü ᦵᦉᦲ (ṡoe), Tai Dam ꪹꪎ, Shan သိူဝ် (sǒe), Ahom 𑜏𑜢𑜤𑜈𑜫 (süw), Aiton ꩬိုဝ် (süw), Thai เสือ (sʉ̌ʉa), Tày slưa.
ᥔᥫᥴ (sóe) (1963 orthography ᥔᥫ́)
