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

WORD ORIGIN

1670s, from Latin iocosus "full of jesting, joking," from iocus "pastime, sport; a jest, joke" (see joke (n.)). Implies ponderous humor. Related: Jocosely; jocoseness.

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