adv. Obs. [a. OF. cert adj. and adv.:—L. cert-us sure, settled, determined, certē surely, certainly. The adj. use does not appear in Eng. (exc. as in 2), and prob. the adverbial use is mixed up with that of CERTES.]
1. Certainly, certes, of a truth.
c. 1300. K. Alis., 5803. So hy ben delited in that art That wery ne ben hy neuere, cert.
c. 1330. Arth. & Merl., 3569. Thir while the knightes cert Were y-went into desert.
2. Phrase. In cert: of a certainty, in truth.
c. 1460. Launfal, 297. I dar well say yn sert.
