versipellis

The companion volume Edible Fungi is so mild by comparison, which is as it should be, a discreet repeat pattern of Boletus versipellis jumping up out of a frying pan.

King Poison Peter Ashley 2008

The more old-fashioned werewolves cling to the true _versipellis_ habits, and in that case only the pigs, the inane Calabrian pigs, are dowered with the faculty of distinguishing them in daytime, when they look like any other "Christian."

Old Calabria Norman Douglas 1910

By the ancient Romans the werewolf was commonly called a "skin-changer" or "turn-coat" (versipellis), and similar epithets were applied to him in the Middle Ages The mediæval theory was that, while the werewolf kept his human form, his hair grew inwards; when he wished to become a wolf, he simply turned himself inside out.

Myths and Myth-makers: Old Tales and Superstitions Interpreted by Comparative Mythology 1872

But the belief that men under certain conditions could also take the shape of animals is primaeval. . . .The Latins called such a man a turnskin -- versipellis, an expression which exactly agrees with the Icelandic expression for the same thing, and which is probably the true original of our turncoat.

Popular Tales from the Norse George Webbe Dasent 1856