There are 16 words that start with 'spell'.
| spell | spells | 
| spelled | speller | 
| spellers | spelling | 
| spellbind | spelldown | 
| spellings | spellbinds | 
| spellbound | spelldowns | 
| spellbinder | spellbinders | 
| spellbinding | spellbindingly | 
Note: These 16 words that start with 'spell' are found from the USA & Canada version of the tournament Scrabble word list.