verb (used with object)
to tickle with the fingers; agitate or stir, as with a spoon.
to excite or rouse (a person), especially by flattery or strong words.
requiring skill or caution; precarious.
1475–85; earlier kytylle, ketil (compare Middle English kitellinge (gerund), late Old English kitelung); cognate with Middle High German kützeln; akin to Old Norse kitla, German kitzeln to tickle