Of, relating to, or constituting a legion.(adjective)
A soldier of a legion.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "legionary" in a sentence
"The legionary is dressed in a galea, a metal helmet with cheek guards, and a cuirass, body armour comprising overlapping iron plates."
"The legionary is also wearing an apron of leather strips featuring metal plates hanging from his belt, and caligae, leather sandals with iron hobnails."
"I think the key word is 'legionary': those forts were for cavalry and auxiliary units."