There are 12 words that start with 'footst'.
footstep | footstalk | footstall |
footsteps | footstock | footstone |
footstool | footstalks | footstalls |
footstocks | footstones | footstools |
Note: These 12 words that start with 'footst' are found from the USA & Canada version of the tournament Scrabble word list.