出典:Wiktionary
Ultimately from Proto-Germanic *grūtiz (“ground material; grit”).
grutum n (genitive grutī); second declension
Second declension.
| Case | Singular | Plural |
|---|---|---|
| nominative | grutum | gruta |
| genitive | grutī | grutōrum |
| dative | grutō | grutīs |
| accusative | grutum | gruta |
| ablative | grutō | grutīs |
| vocative | grutum | gruta |