also: よめし
noun
Archaic term for the evening meal; in modern Japanese, 夕食 (ゆうしょく) or 晩ご飯 (ばんごはん) are standard.
古文書には「夜飯」と記されているが、今ではほとんど使われない。
In old documents it is written as 夜飯, but it is hardly used today.
Compound of 夜 (night) and 飯 (meal). The reading やはん uses the on'yomi of both characters, while よめし uses the kun'yomi of 夜 and the on'yomi of 飯. The exact historical derivation is uncertain.