[jac.ti.ta.tion] n [LL jactitation-, jactitatio, fr. jactitare, freq. of L jactare to throw--more at jet] (1665): a tossing to and fro or jerking and twitching of the body
JACTITATION
Meaning of JACTITATION in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012