What does "siker" mean?

Siker: Sure; certain; trusty. [Obs. or Prov. Eng. & Scot.] Burns. When he is siker of his good name. Chaucer.

Additional senses

  1. 2.Surely; certainly. [Obs.] Believe this as siker as your creed. Chaucer. Sicker, Willye, thou warnest well. Spenser.
  2. 3.See 2d Sicker, Sickerly, etc. [Obs.]

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