ETYM Latin jactitare to utter in public, from jactare. Related to Jactancy.
1. A false boast that can harm others; especially a false claim to be married to someone (formerly actionable at law).
2. (Pathology) Extremely restless tossing and twitching usually by a person with a severe illness; SYN. jactation.
A tossing, twitching or jerking of the body; a false claim.
Jactation; false claim. jactitation of marriage, false claim to be married to a person.