There are 12 words that end with 'otent'.
| potent | impotent | nilpotent | 
| prepotent | subpotent | unipotent | 
| idempotent | omnipotent | overpotent | 
| totipotent | plenipotent | pluripotent | 
Note: These 12 words that end with 'otent' are found from the USA & Canada version of the tournament Scrabble word list.