/ ˈliːdʒənəri; NAmE -neri/ noun
( pl. -ies ) a soldier who is part of a legion
► le·gion·ary adjective [ only before noun ]
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WORD ORIGIN
late Middle English : from Latin legionarius , from legio(n-) , from legere choose, levy. The adjective dates from the late 17th cent., in early use often in the phrase my, their, etc. name is legion , i.e. we, they, etc. are many (Mark 5:9).