means A villain is a character or person who deliberately does evil, scheming and harming as the chief antagonist of a story or situation.

from From Latin 'villanus,' meaning a farmhand tied to a 'villa,' a country estate. The villain was originally just a peasant — a rural worker, nothing sinister. But class snobbery did its dirty work: as the word passed through Old French 'vilain' into English, 'low-born' slid into 'low-minded,' and the humble farmhand became a scoundrel. By the time the theatre got hold of it, the villain wasn't tilling fields — he was twirling a moustache.