versipelle

Etymology
(“shape-shifting; sly, cunning”, adjective, literally “skin-turning”; “werewolf”, noun)

Adjective

 * 1) shape-shifting
 * 2)  cunningly  slyly deceiving
 * 3)  false, deceiving
 * 4) turncoating

Noun

 * 1) a sly dissembler  pretender; a cunning, immoral man
 * 2) one who turns his coat
 * 3) werewolf, lycanthrope