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.