Meaning

noun washing out a hollow organ (especially the stomach) by flushing with water

originEtymology tree French laver Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-tós Proto-Indo-European *-eh₂tos Proto-Italic *-ātos Latin -ātus Proto-Indo-European *-ikos Proto-Italic *-ikos Latin -icus Latin -āticus Latin -āticum Old French -age Middle French -age French -age French lavagebor. English lavage Borrowed from French lavage.

Etymology from Wiktionary, CC BY-SA 3.0