1680s, noun of action from Latin infarcire "to stuff into," from in- "into" (from PIE root *en "in") + farcire "to stuff" (see farce).
Formerly applied in pathology to a variety of morbid local conditions; now usually restricted to certain conditions caused by a local fault in the circulation. [Century Dictionary, 1902]
infantile
infantilism
infantry
infantryman
infarct
infarction
infatigable
infatuate
infatuation
infeasibility
infeasible