From Middle Chinese 廣 (MC kwangX). Cognate with Thai กว้าง (gwâang), Northern Thai ᨠ᩠ᩅ᩶ᩣ᩠ᨦ, Lü ᦦᦱᧂᧉ (k̇waang²), Shan ၵႂၢင်ႈ (kwāang), Ahom [Term?], Bouyei gvaangs, Zhuang gvangq.
ກວ້າງ • (kuāng) (abstract noun ຄວາມກວ້າງ)