Definition of "traitress"

My wife, my traitress, let her not come near me.

1671, John Milton, “Samson Agonistes, […]”, in Paradise Regain’d. A Poem. In IV Books. To which is Added, Samson Agonistes, London: […] J. M[acock] for John Starkey […], line 725

Would'st thou revenge thee, traitress, hadst thou pow'r?

1690, [John] Dryden, Don Sebastian, King of Portugal: […], London: […] Jo. Hindmarsh, […], (please specify the page number)