There are 14 words that end with 'llous'.
| bullous | callous |
| gallous | villous |
| thallous | aphyllous |
| libellous | cancellous |
| marvellous | mesophyllous |
| microvillous | microphyllous |
| chlorophyllous | heterophyllous |
Note: These 14 words that end with 'llous' are found from the USA & Canada version of the tournament Scrabble word list.