There are 17 words that end with 'llis'.
cullis | follis | tallis |
challis | chillis | trellis |
fusillis | amaryllis | gingellis |
gingillis | teocallis | portcullis |
scungillis | piccalillis | torticollis |
vermicellis | hemerocallis | |
Note: These 17 words that end with 'llis' are found from the USA & Canada version of the tournament Scrabble word list.