jactitation1 /ˌdʒaktɪˈteɪʃn 
/ ▸ noun [mass noun] Medicine the restless tossing of the body in illness. ▪ the twitching of a limb or muscle.
– ORIGIN mid 17th century: expressive extension of earlier jactation ‘restless tossing’, from Latin jactare ‘to throw’.
EnglishOxford Dictionary of English
