First Declension: Masculine Nouns

19.14 Most nouns of the first declension are feminine. Some nouns of the first declension, however, are MASCULINE, particularly those referring to a specifically male person. In such instances, three changes occur:

The NOMINATIVE SINGULAR adds –ς.

The GENITIVE SINGULAR uses the masculine –ου ending.

Otherwise, masculine nouns follow the basic rules for all other first declension nouns. Observe the following (cf. S 222):

19.15

19.16

(cf. G 71)