v. i. [ AS. sicerian. ] (Mining) To percolate, trickle, or ooze, as water through a crack. [ Also written sigger, zigger, and zifhyr. ] [ Prov. Eng. ] [ 1913 Webster ]

{ }, a. [ OE. siker; cf. OS. sikur, LG. seker, D. zeker, Dan. sikker, OHG. sihhur, G. sicher; all fr. L. securus. See Secure, Sure. ] Sure; certain; trusty. [ Obs. or Prov. Eng. & Scot. ] Burns. [ 1913 Webster ]

When he is siker of his good name. Chaucer. [ 1913 Webster ]

{ }, adv. Surely; certainly. [ Obs. ] [ 1913 Webster ]

Believe this as siker as your creed. Chaucer. [ 1913 Webster ]

Sicker, Willye, thou warnest well. Spenser. [ 1913 Webster ]