Definition of "hundredman"

“By your command, Lord Bornhald.” The hundredman sounded only a little disappointed. Touching gauntleted fist to heart, he wheeled away toward the Tuatha’an encampment.

1992, Robert Jordan, “Chapter 31: Assurances”, in The Shadow Rising (The Wheel of Time; 4), London: Orbit Books, published 2021, page 496