Quiz: Remember the definition of mal de mer?
Old English fearh "young pig," from Proto-Germanic *farkhaz "young pig" (cf. Middle Low German ferken, Dutch varken, both diminutives, Old High German farh, German Ferkel), from PIE *porkos- (see pork (n.)). Sense of "a litter of pigs" first recorded 1570s. As a verb, early 13c.