The answer is brim.
Only 1 part has 4 letters, noch, the notched part for the string.
kepi
Four letter words that can be made from the letters 'cat in the hat' are:acheacneantecanecant (also can't)catecentchatchinchitciteeachetchhatehathheathintinchitchneatnicetactteattentthanthatthenthintinetint
heelsolelacetoesSoleHeelVampSoleHeelVamp
A 'bowler' hat has six letters.
base
i think it is your palm
Pinky and the Brain - 1995 Brainwashed Part 2 - I Am Not a Hat 4-2 was released on: USA: 15 September 1998
A role maybe?
"Nose"
heel i think
Base