§81. Greek Nouns of the Third Declension
Many nouns originally Greek—mostly proper names— retain Greek forms of inflection. So especially—
- Genitive singular in -os, as, tigridos.
- Accusative singular in -a, as, aethera.
- Vocative singular like the stem, as, Periclē, Orpheu, Atlā.
- Nominative plural in -ĕs, as, hērōĕs.
- Accusative plural in -ăs, as, hērōăs.
J. H. Allen and J. B. Greenough, New Latin Grammar (Boston: Ginn, 1903). Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities.