Quiz: Remember the definition of mal de mer?
Old English bealcan "bring up wind from the stomach," also "swell, heave," of echoic origin (cf. Dutch balken "to bray, shout"). Extended to volcanoes, cannons, etc. 1570s. Related: Belched; belching. As a noun, recorded from 1510s. It is recorded in 1706 as a slang noun meaning "poor beer."
v. belched, belch·ing, belch·es
To expel stomach gas noisily through the mouth; burp.