19.1 Almost all Greek nouns belong to one of three INFLECTION patterns, called the FIRST DECLENSION, SECOND DECLENSION, and THIRD DECLENSION. Each represents a particular set of CASE ENDINGS for gender, number, and case. So far, we have encountered only THIRD DECLENSION nouns. This lesson introduces FIRST DECLENSION nouns.
19.2 First Declension: Nouns with -η in the Singular
Most nouns of the first declension end in –η in the singular, which becomes –α in the plural. The good news: you have already learned these endings; they are identical to the pronouns αὐτός, αὐτή, αὐτό and ἐκεῖνος, ἐκείνη, ἐκεῖνο (S 216).
(G 70)
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