-acus
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Latin
[edit]Etymology 1
[edit]From Gaulish, from Proto-Celtic *-ākos (adjective-forming suffix).
Suffix
[edit]-ācus (feminine -āca, neuter -ācum); first/second-declension suffix
- Suffixed to nouns to create adjectives, often substantivised in toponyms.
- Synonym: -ānus
- Aurēlius + -ācus → Aurēliācum
- Paulus + -ācus → Pauliācus
Usage notes
[edit]In toponyms, mainly in northern Gaul, -ācus is commonly found appended to personal names, denoting the owner of a property or fundus. Rendered -ac, -at, -y, -é in modern French toponyms.
Declension
[edit]First/second-declension adjective.
| Number | Singular | Plural | |||||
|---|---|---|---|---|---|---|---|
| Case / Gender | Masculine | Feminine | Neuter | Masculine | Feminine | Neuter | |
| Nominative | -ācus | -āca | -ācum | -ācī | -ācae | -āca | |
| Genitive | -ācī | -ācae | -ācī | -ācōrum | -ācārum | -ācōrum | |
| Dative | -ācō | -ācō | -ācīs | ||||
| Accusative | -ācum | -ācam | -ācum | -ācōs | -ācās | -āca | |
| Ablative | -ācō | -ācā | -ācō | -ācīs | |||
| Vocative | -āce | -āca | -ācum | -ācī | -ācae | -āca | |
Derived terms
[edit]Etymology 2
[edit]From Ancient Greek -ακός (-akós, adjective-forming suffix).
Suffix
[edit]-acus (feminine -aca, neuter -acum); first/second-declension suffix
- Suffixed to nouns to create adjectives
- Synonym: -ānus
- Corinthus + -acus → Corinthiacus
Declension
[edit]First/second-declension adjective.
| Number | Singular | Plural | |||||
|---|---|---|---|---|---|---|---|
| Case / Gender | Masculine | Feminine | Neuter | Masculine | Feminine | Neuter | |
| Nominative | -acus | -aca | -acum | -acī | -acae | -aca | |
| Genitive | -acī | -acae | -acī | -acōrum | -acārum | -acōrum | |
| Dative | -acō | -acō | -acīs | ||||
| Accusative | -acum | -acam | -acum | -acōs | -acās | -aca | |
| Ablative | -acō | -acā | -acō | -acīs | |||
| Vocative | -ace | -aca | -acum | -acī | -acae | -aca | |
Descendants
[edit]- → English: -ac