lo•gyPronunciation: (lō'gē), [key]
—adj., -gi•er, -gi•est.
lacking physical or mental energy or vitality; sluggish; dull; lethargic.
a combining form used in the names of sciences or bodies of knowledge: paleontology; theology.
a termination of nouns referring to writing, discourses, collections, etc.: trilogy; martyrology.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.