PENCILLING is a playable word

pencil Scrabble® Dictionary

verb
penciled, penciling, pencils or pencilled, pencilling, pencils
to produce by using a pencil (a writing and drawing implement)
98 Playable Words can be made from "PENCILLING"
   2-Letter Words (8 found)
   3-Letter Words (27 found)
   6-Letter Words (9 found)
   9-Letter Words (1 found)
   10-Letter Words (1 found)