There are 16 words that start with 'cathol'.
| catholic | catholics |
| catholicoi | catholicon |
| catholicos | catholicate |
| catholicity | catholicize |
| catholicons | catholically |
| catholicates | catholicized |
| catholicizes | catholicoses |
| catholicities | catholicizing |
Note: These 16 words that start with 'cathol' are found from the USA & Canada version of the tournament Scrabble word list.