Borrowed from Latin -oīdēs (“-like, -oid”).
-oides m or f or n
From -o- + Ancient Greek -ειδής (-eidḗs, “-oid, -like”).
-oīdēs (neuter -oīdes or -oīdēs); third-declension one-termination suffix (Greek-type)
Third-declension one-termination adjective (Greek-type).
| singular | plural | ||||
|---|---|---|---|---|---|
| masc./fem. | neuter | masc./fem. | neuter | ||
| nominative | -oīdēs | -oīdes1 -oīdēs |
-oīdēs | -oīda -oīdia2 | |
| genitive | -oīdis | -oīdum -oīdium2 | |||
| dative | -oīdī | -oīdibus | |||
| accusative | -oīdem | -oīdes1 -oīdēs |
-oīdēs | -oīda -oīdia2 | |
| ablative | -oīde -oīdī2 |
-oīdibus | |||
| vocative | -oīdes1 -oīdēs |
-oīdēs | -oīda -oīdia2 | ||
1It is unknown if Classical Latin preserved (or would have preserved) the shortness of the original Greek short ending.
2It is unknown whether adjectives of this type would use i-stem or consonant-stem endings in Classical Latin: the relevant forms are not attested. Depending on the word, either ending or both may be attested in New Latin.