1592. R. D., Hypnerotomachia, 81 b. Her virgineall aspects, exceedingly beautified with a comely grace and unexcogitable elegancie.
1614. Raleigh, Hist. World, I. ii. § 1. 24. Wherein can man be said to resemble his vnexcogitable power and perfectnesse?
c. 1624. Chapman, Hymn Hermes, 158. Unexcogitable thoughts in act Putting.