出典:Wiktionary
出典:『Wiktionary』 (2026/03/11 21:05 UTC 版)
From arcanus.
Second-declension noun (neuter).
| singular | plural | |
|---|---|---|
| nominative | arcānum | arcāna |
| genitive | arcānī | arcānōrum |
| dative | arcānō | arcānīs |
| accusative | arcānum | arcāna |
| ablative | arcānō | arcānīs |
| vocative | arcānum | arcāna |