What is a leikin?

A Leikin if i am Right is a More Proper Tearm for a Being who can Transform into a Wolf or Dog upon will or at the Sight of a full Moon...

its a More Fancy way of saying ' Werewolf '

in many Fantasy Settings.. They Are Often Tan Human Beings with Very Built Bodies...

in The Twilight series .. Or Underworld .. Liekins are shown.. as probably many others..