What is chu nom?

Answer 1

Chữ Nôm (𡨸喃) was a script used in Vietnam to record the native Vietnamese language during some time around 1000 AD to as recently as the 1950s and 60s. It combines Chinese characters with ones that were systematically coined by the Vietnamese elites to represent Vietnamese words not present in Chinese. Most of the Nom characters were created using the common blending technique of a semantic (meaningful) component with a phonetic (sound) component. It has since been replaced by a Latin-based alphabet script.

Answer 2

Chu Nom is a logographic script once used to write the Vietnamese language. It was derived from Chinese characters but adapted to represent Vietnamese sounds and meanings. Chu Nom fell out of use in the 19th century with the rise of the Latin-based Vietnamese alphabet, Quoc Ngu.