the collection and study of postage stamps, postmarks, stamped envelopes
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'philately'Fr philatélie, coined (1864) < Gr philos, loving + ateleia, exemption from (further) tax, taken as equivalent of “postage prepaid”