English
gatecrasher
From gate + crasher.
Proto-Germanic *gatą ‘hole, opening’
Proto-West Germanic *gat ‘opening, gate’
Old English ġeat ‘gate, door’
Middle English gate ‘gate’
English gate
Today it means
noun A person who enters some event without a ticket or invitation, either by stealth or by deception.
Language periods are conventional ranges, not dates for this word.
Etymograph / gatecrasher