There are 12 words that start with 'ingrat'.
| ingrate | ingrates |
| ingratiate | ingratiated |
| ingratiates | ingratitude |
| ingratiating | ingratiation |
| ingratiatory | ingratitudes |
| ingratiations | ingratiatingly |
Note: These 12 words that start with 'ingrat' are found from the USA & Canada version of the tournament Scrabble word list.