\Sith\, prep., adv., & conj. [See {Since}.]
Since; afterwards; seeing that. [Obs.]
      We need not fear them, sith Christ is with us.
                                               --Latimer.
      Sith thou art rightful judge.            --Chaucer.

\Sith\, Sithe \Sithe\, n. [AS. ??? a path, way, time,
occasion.]
Time. [Obs.] --Chaucer.
      And humbly thanked him a thousand sithes. --Spenser.