English
invasionary
From invasion + -ary.
A compound of invasion + -ary
Proto-Indo-European *weh₂dʰ- ‘to advance’
…
Latin vādō ‘to go, rush’
Latin invādō ‘to invade’
Late Latin invāsiō ‘attack, invasion’
Middle French invasion
English invasion
Today it means
adj that take part in a military invasion
Language periods are conventional ranges, not dates for this word.
Etymograph / invasionary