There are 11 words that start with 'kerato'.
| keratoid | keratoma | 
| keratose | keratomas | 
| keratoses | keratosic | 
| keratosis | keratotic | 
| keratomata | keratoplasty | 
| keratoplasties | |
Note: These 11 words that start with 'kerato' are found from the USA & Canada version of the tournament Scrabble word list.