Source : Webster's Revised Unabridged Dictionary (1913)

Sithe \Sithe\, v. i. [Cf. {Sigh}.]
   To sigh.

   Note: [A spelling of a corrupt and provincial pronunciation.]

Sithe \Sithe\, n.
   A scythe. [Obs.] --Milton.

Sithe \Sithe\, v. t.
   To cut with a scythe; to scythe. [Obs.]

Sith \Sith\, Sithe \Sithe\, n. [AS. ??? a path, way, time,
   occasion.]
   Time. [Obs.] --Chaucer.

         And humbly thanked him a thousand sithes. --Spenser.