late 14c., "pine cone," from pine (n.) + apple. The reference to the fruit of the tropical plant (from resemblance of shape) is first recorded 1660s, and pine cone emerged 1690s to replace pineapple in its original sense except in dialect. For "pine cone," Old English also used pinhnyte "pine nut."[pineapple etymology, pineapple origin, 英语词源]