3 Letters:
* LIC
* SIP
* CLIP
* LIPS
4 Letters:
* SCIP
* SLIP
* PICS
* LISP
5 Letters:
* SCUPS
* SPLIC (archaic word for "to splice")
6 Letters:
* SCULPS (archaic word for "sculpts")
Let me know if you want to try for longer words or words using specific rules!