certain

certain is an Adverb

Definition:

[1] Assured in mind; having no doubts; free from suspicions concerning. To make her certain of the sad event. Dryden. I myself am certain of you. Wyclif.

[2] Determined; resolved; -- used with an infinitive. However, I with thee have fixed my lot, Certain to undergo like doom. Milton.

[3] Not to be doubted or denied; established as a fact. The dream is certain, and the interpretation thereof sure. Dan. ii. 45.

[4] Actually existing; sure to happen; inevitable. Virtue that directs our ways Through certain dangers to uncertain praise. Dryden. Death, as the Psalmist saith, is certain to all. Shak.

[5] Unfailing; infallible. I have often wished that I knew as certain a remedy for any other distemper. Mead.

[6] Fixed or stated; regular; determinate. The people go out and gather a certain rate every day. Ex. xvi. 4.

[7] Not specifically named; indeterminate; indefinite; one or some; -- sometimes used independenty as a noun, and meaning certain persons. It came to pass when he was in a certain city. Luke. v. 12. About everything he wrote there was a certain natural grace und decorum. Macaulay. For certain, assuredly. -- Of a certain, certainly.