legionary

Meanings

1. A soldier belonging to a legion; a professional soldier of the ancient Roman army.
2. A person who is neither a citizen nor colonial/imperial subject of the state whose military they join.
3. A member of a legion, such as the American Legion, or of any organization containing the term legion in its title (e.g. the French Foreign Legion).

1. Relating to, or consisting of, a legion or legions.
2. Containing a great number.

1. a member of the Legion of Christ, a Roman Catholic religious institute

Etymology

From legion + -ary. From Latin legiōnārius. Doublet of legionnaire.