Source : Webster's Revised Unabridged Dictionary (1913)

Kittle \Kit"tle\, v. i. [Cf. {Kit} a kitten.] (Zo["o]l.)
   To bring forth young, as a cat; to kitten; to litter. [Prov.
   Eng. & Scot.]

Kittle \Kit"tle\, v. t. [Cf. AS. citelian; akin to D. kittelen,
   G. kitzeln, Icel. kitla, Sw. kittla, kittsla, Dan. kildre.
   Cf. {Tickle}.]
   To tickle. [Prov. Eng. & Scot.] [Written also {kittel}.]
   --Halliwell. --Jamieson.

Kittle \Kit"tle\, a.
   Ticklish; not easily managed; troublesome; difficult;
   variable. [Prov. Eng. & Scot.] --Halliwell. --Sir W. Scott.