Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

WORD ORIGIN

1550s, possibly an alteration of tip for tap "blow for blow," from tip (v.3) "tap" + tap "touch lightly." Perhaps infl. by tit (n.2).

MORE RELATED WORDS FOR TIT FOR TAT

exchange

nountrade; deal
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.