verb intransitiveWord forms: exˈpatiˌated or exˈpatiˌating
1. Archaic to roam or wander freely
2. to speak or write in great detail; elaborate or enlarge (on or upon)
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'expatiate'
< L expatiatus
, pp. of expatiari, exspatiari
, to go out of one's course, wander < ex-
, out + spatiari
, to walk, roam < spatium