Obsolete Japanese term for the Korean alphabet, used historically. Modern Japanese normally uses ハングル.
See also: 諺文 (オンモン)
Archaic meaning, derived from the literal sense of 'vulgar writing' or 'common saying'. Extremely rare; not used in modern Japanese.
In Edo-period documents, there are examples where the Korean script is written as 諺文.
In old language, 諺文 could refer to a proverb, but it is hardly ever used in modern times.