The Collaborative International Dictionary of English v.0.48:

Spit \Spit\, v. t. [imp. & p. p. Spitted; p. pr. & vb. n.
   Spitting.] [From Spit, n.; cf. Speet.]
   1. To thrust a spit through; to fix upon a spit; hence, to
      thrust through or impale; as, to spit a loin of veal.
      "Infants spitted upon pikes." --Shak.
      [1913 Webster]

   2. To spade; to dig. [Prov. Eng.]
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Spit \Spit\, v. t. [imp. & p. p. Spit (Spat, archaic); p.
   pr. & vb. n. Spitting.] [AS. spittan; akin to G.
   sp["u]tzen, Dan. spytte, Sw. spotta,Icel. sp?ta, and prob. E.
   spew. The past tense spat is due to AS. sp?tte, from sp?tan
   to spit. Cf. Spat, n., Spew, Spawl, Spot, n.]
   1. To eject from the mouth; to throw out, as saliva or other
      matter, from the mouth. "Thus spit I out my venom."
      --Chaucer.
      [1913 Webster]

   2. To eject; to throw out; to belch.
      [1913 Webster]

   Note: Spitted was sometimes used as the preterit and the past
         participle. "He . . . shall be mocked, and spitefully
         entreated, and spitted on." --Luke xviii. 32.
         [1913 Webster]

WordNet (r) 3.0 (2006):

spitting
    n 1: the act of spitting (forcefully expelling saliva) [syn:
         spit, spitting, expectoration]