sellarius

la-noun

sellārius m (genitive sellāriī or sellārī); second declension

sellārius (canonical masculine)
sellāriī (genitive)
sellārī (genitive)
sellārius (nominative singular)
sellāriī (nominative plural)
sellāriī (genitive singular)
sellārī (genitive singular)
sellāriōrum (genitive plural)
sellāriō (dative singular)
sellāriīs (dative plural)
sellārium (accusative singular)
sellāriōs (accusative plural)
sellāriō (ablative singular)
sellāriīs (ablative plural)
sellārī (singular vocative)
sellāriī (plural vocative)

→ English: sellary (learned)

[s̠ɛlˈlʲäːriʊs̠]

tuncque primum ignota antea vocabula reperta sunt sellariorum et spintriarum ex foeditate loci

1598 translation by Richard Greenway
Then first of all were those vnknowen words of Sellaries and Spintries found out of the filthines of the place.


fratruus

frātruus m (genitive frātruī); second declension

frātruus (canonical masculine)
frātruī (genitive)
frātruus (nominative singular)
frātruī (nominative plural)
frātruī (genitive singular)
frātruōrum (genitive plural)
frātruō (dative singular)
frātruīs (dative plural)
frātruum (accusative singular)
frātruōs (accusative plural)
frātruō (ablative singular)
frātruīs (ablative plural)
frātrue (singular vocative)
frātruī (plural vocative)

From frāter (“brother”), by analogy with patruus.