Found in Late, Vulgar, and Medieval Latin, from Proto-West Germanic *-isk, from Proto-Germanic *-iskaz, from Proto-Indo-European *-iskos (suffix).
Cognate with Ancient Greek -ῐ́σκος (-ískos), which forms diminutive nouns.[1]
-iscus (feminine -isca, neuter -iscum); first/second-declension suffix
First/second-declension adjective.
| Number | Singular | Plural | |||||
|---|---|---|---|---|---|---|---|
| Case / Gender | Masculine | Feminine | Neuter | Masculine | Feminine | Neuter | |
| Nominative | -iscus | -isca | -iscum | -iscī | -iscae | -isca | |
| Genitive | -iscī | -iscae | -iscī | -iscōrum | -iscārum | -iscōrum | |
| Dative | -iscō | -iscae | -iscō | -iscīs | |||
| Accusative | -iscum | -iscam | -iscum | -iscōs | -iscās | -isca | |
| Ablative | -iscō | -iscā | -iscō | -iscīs | |||
| Vocative | -isce | -isca | -iscum | -iscī | -iscae | -isca | |