Unfaithfully

adv. [UN-¹ 11.] In an unfaithful manner; with lack of good faith.

1340–70.  Alisaunder, 239. And Philip unfaithfully þe faire coste had, Arisba in exile euer was after.

1491.  Act 7 Hen. VII., c. 22, Preamble. The seid John unfeithfully and untruly suffred the bringer of the seid writing to goo at his plesure.

c. 1545.  Ld. Morley, Hyst. Massuccio, fol. 2 b. You haue been vnfaithefully, vniustly and falsely [accused].

1579.  E. K., Spenser’s Sheph. Cal., June, Argt. He is nowe forsaken vnfaithfully.

1607–12.  Bacon, Ess., Counsel (Arb.), 316. The daunger of being vnfaithfullie councelled.

1679.  Everard, Popish Plot, 5. Sir Robert most unfaithfully … discovered all to Colonel Talbot.

1722.  Wollaston, Relig. Nat., vi. § 19 (1724), 144. He, who acts unfaithfully, acts against his promises and ingagements.