Attested in Chỉ nam ngọc âm giải nghĩa (指南玉音解義, 15 cent.) as 𪞀, phonetic 光 (MC kwang) (modern SV: quang). Attested as khŏang in the Dictionarium Annamiticum Lusitanum et Latinum (1651).
(classifier cái) khoang • (桄, 𦨻, 𦪻)
khoang • (㘢, 桄)