| 1 | English | -ible | An adjective suffix, now usually in a passive... |
| 2 | English | -ity | Used to form a noun from an adjective;... |
| 3 | Middle English | -ite | — |
| 4 | Old French | -ité | -ity |
| 5 | Latin | -itās | — |
| 6 | Proto-Indo-European | -teh₂ts | Used to form nouns representing state of being |
| 7 | Proto-Indo-European | -teh₂ | Used to form nouns representing state of being |
| 8 | Proto-Indo-European | -tós | Creates verbal adjectives from verb stems |