"alloy of 3 or 4 parts copper and 1 of zinc," much used in cheap jewelry, from 1732, in reference to Christopher Pinchbeck, 18c. London watch- and toy-maker, who evidently developed it.
pinchbeck heroism
pinata
pinball
pince-nez
pincers
pinch
pinchbeck
pincushion
Pindaric
pine
pineal
pineapple