Mariolater

Mar·i·ol·a·try

 (mâr′ē-ŏl′ə-trē)
n.
Veneration of the Virgin Mary regarded as constituting idolatrous worship.

Mar′i·ol′a·ter n.
Mar′i·ol′a·trous adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.