1482. Caxton, Polycron., VIII. xiii. 406 b. To depose them that were scysmatykes, and to chose one very heede and vndubytate pope.
a. 1548. Hall, Chron., Hen IV., 15. An vndubitate kyng, crouned and anoynted by the spiritualtie.
1590. Barrough, Meth. Physick, IV. xi. (1596), 243. This shalbe a great and vndubitate signe to you.
1611. Speed, Hist., IX. xix. § 26. The vndubitate heire to Richard Plantagenet.
So † Undubitately adv. = INDUBITATELY adv.
a. 1548. Hall, Chron., Edw. IV., 249. My hope is with a sure anchor grounded, and myne inwarde conceipte vndubitatly resolued. Ibid., Hen. VII., 31 b.