-언

Suffix

 * 1) that (marking an indirect quotation)

Usage notes
In the indirect quotation sense, is attached to a plain form of the quoted verb and is followed by a clause ending in a verb related to speech or.

Etymology
Plausibly a shortening of +. Compare, which is also used.

Noun

 * 1)  a plain-style interrogative suffix

Usage notes
Still commonly used according to defectors from Pyongan dialect speaking areas. This includes Pyongyang, where Munhwa'eo appears to have influenced the local speech more significantly than other regions.