Arcadian shepherd god with upper body of a man and horns and lower part like a goat, late 14c., a god of the woods and fields, from Latin, from Greek Pan. Klein says perhaps cognate with Sanskrit pusan, a Vedic god, guardian and multiplier of cattle and other human possessions, literally "nourisher." Similarity to pan "all" (see pan-) led to his being regarded as a personification of nature. Pan-pipe, upon which he supposedly played, is attested from 1820.