There are 17 words that start with 'grot'.
| grot | grots |
| grotto | grotty |
| grottos | grottier |
| grottoed | grottoes |
| grotesque | grottiest |
| grotesques | grotesquely |
| grotesquery | grotesquerie |
| grotesqueness | grotesqueries |
| grotesquenesses | |
Note: These 17 words that start with 'grot' are found from the USA & Canada version of the tournament Scrabble word list.