The Collaborative International Dictionary of English v.0.48:

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.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Kittel \Kit"tel\ (k[i^]t"t'l), v. t.
   See Kittle, v. t.
   [1913 Webster]