sinner n.

"one who breaks the divine law, one who offends God," mid-14c. (late 13c. in surnames), also "a non-Christian," agent noun from sin (v.). Old English had synngiend in this sense. Wycliffe (1380s) has sinneresse "female sinner" for Latin mulier peccatrix (Luke vii), and this is attested by 1255 as a surname (Juliana le Sunyeres).

Whether the charmer sinner it, or saint it,

If folly grows romantic, I must paint it.

[Pope, "Moral Essays"]