From Proto-Tai *soːlᴬ (“to teach”). Cognate with Thai สอน (sɔ̌ɔn), Northern Thai ᩈᩬᩁ, Lao ສອນ (sǭn), Lü ᦉᦸᧃ (ṡoan), Tai Dam ꪎꪮꪙ, Shan သွၼ် (sǎun), Ahom 𑜏𑜨𑜃𑜫 (son), Zhuang son.
ᥔᥩᥢᥴ (sóan) (1963 orthography ᥔᥩᥢ́)