Sick·er·ly, Sik·er·ly , adv. Surely; securely. [Obs.] But sikerly, withouten any fable. --Chaucer. ◄ ►
Sik·er a. & adv., Sik·er·ly, adv., Sik·er·ness, n., etc. See 2d Sicker, Sickerly, etc. [Obs.] ◄ ►