There are 15 words that end with 'ttish'.
| cattish | hottish | 
| fattish | ruttish | 
| pettish | sottish | 
| rattish | wettish | 
| brattish | flattish | 
| skittish | sluttish | 
| coquettish | novelettish | 
| sansculottish | |
Note: These 15 words that end with 'ttish' are found from the USA & Canada version of the tournament Scrabble word list.