There are 17 words that start with 'cout'.
| couth | couter | couths | 
| couteau | couters | couther | 
| couthie | couture | couteaux | 
| couthest | couthier | coutures | 
| couthiest | couturier | couturiere | 
| couturiers | couturieres | |
Note: These 17 words that start with 'cout' are found from the USA & Canada version of the tournament Scrabble word list.