"small, often inflamed, swelling of the skin," late 14c. (early 14c. as a surname), of unknown origin; perhaps related to Old English pipligende "having shingles;" also compare Latin papula, papilla (see pap (n.2)). As a verb, "to cover with pimples," from c. 1600. Related: Pimples.
updated on June 12, 2020