From Proto-Tai *ŋwanᴬ (“daytime”). Cognate with Thai วัน (wan), Northern Thai ᩅᩢ᩠ᨶ, Lao ວັນ (wan), Lü ᦞᧃ (van), Shan ဝၼ်း (wán), Ahom 𑜈𑜃𑜫 (ban), Zhuang ngoenz, Bouyei nguanz.
ᥝᥢᥰ (van2) (old orthography ᥝᥢ¨)