English
legioned
From legion + -ed.
Formed from legion + -ed
Proto-Indo-European *leǵ- ‘to gather’
…
Proto-Italic *legō
Latin legō ‘to gather, collect’
Latin legiō ‘a legion’
Old French legion
English legion
Today it means
adj Formed into a legion or legions
Language periods are conventional ranges, not dates for this word.
Etymograph / legioned