出典:Wiktionary
出典:『Wiktionary』 (2026/06/24 00:52 UTC 版)
ordo (plural ordines or ordos)
Uncertain. Perhaps from Proto-Indo-European *h₂or-d-, itself from *h₂er-, with a *d-extension that is otherwise unattested for this root, and an ablauting nasal suffix (see -ō). An alternative zero-grade stem *ord-n- may be attested in the derived word ōrnō. The lengthening of the initial *o- to ō- is a secondary development. Within Latin, related to artus (“joint, limb”).
ōrdō m (genitive ōrdinis); third declension
Third-declension noun.
| singular | plural | |
|---|---|---|
| nominative | ōrdō | ōrdinēs |
| genitive | ōrdinis | ōrdinum |
| dative | ōrdinī | ōrdinibus |
| accusative | ōrdinem | ōrdinēs |
| ablative | ōrdine | ōrdinibus |
| vocative | ōrdō | ōrdinēs |