There are 13 9-letter words that end with 'essly'.
| agelessly | aimlessly | artlessly |
| godlessly | haplessly | endlessly |
| expressly | lawlessly | joylessly |
| sexlessly | sinlessly | uselessly |
| witlessly | ||
Note: These 13 9-letter words that end with 'essly' are found from the USA & Canada version of the tournament Scrabble word list.