There are 15 words that start with 'blis'.
| bliss | blissed | 
| blisses | blister | 
| blissful | blissing | 
| blisters | blistery | 
| blissless | blistered | 
| blissfully | blistering | 
| blissfulness | blisteringly | 
| blissfulnesses | |
Note: These 15 words that start with 'blis' are found from the USA & Canada version of the tournament Scrabble word list.