There are 15 words that start with 'calv'.
| calve | calved | calves |
| calvary | calving | calvados |
| calvaria | calvarial | calvarian |
| calvarias | calvaries | calvarium |
| calvities | calvadoses | calvariums |
Note: These 15 words that start with 'calv' are found from the USA & Canada version of the tournament Scrabble word list.