There are 11 words that end with 'iosity'.
| piosity | otiosity |
| cariosity | curiosity |
| dubiosity | speciosity |
| preciosity | grandiosity |
| incuriosity | religiosity |
| impecuniosity | |
Note: These 11 words that end with 'iosity' are found from the USA & Canada version of the tournament Scrabble word list.