English
vanillin
From vanilla + -in.
A compound of vanilla + -in
Proto-Italic *wāgīnā
Latin vāgīna ‘sheath’
Old Spanish vayna ‘sheath’
Spanish vaina ‘pod’
Spanish vainilla
English vanilla
Today it means
noun A chemical compound, 4-hydroxy-3-methoxybenzaldehyde, that is the primary constituent of vanilla.
Language periods are conventional ranges, not dates for this word.
Etymograph / vanillin