adv. Obs. [f. COUNTERFEIT a. + -LY2.] In a counterfeit manner; feignedly, pretendedly, deceitfully, falsely.
1548. Udall, etc. Erasm. Par. Eph. vi. 5. In whose [Christs] syghte nothing is acceptable, that is counterfaytely done.
1607. Shaks., Cor., II. iii. 107. I will practice the insinuating nod, and be off to them most counterfetly.
1683. E. Hooker. Pref. Epist. Pordages Mystic Div., 59. Wisdom from above without Hypocrisie not acting ani waie counterfeitly.
1717. De Foe, Mem. Ch. Scot., 35. Counterfeitly and lyingly to serve you.