Latin words of the first declension have an invariable stem and are generally of feminine gender. The predominant letter in the ending forms of this declension is a. The nominative singular form consists of the stem and the suffix -a, and the genitive singular form is the stem plus -ae.
There is a small category of masculine exceptions, which generally refer to occupations. These include 'farmer' (agricola, agricolae masc.), 'sailor' (nauta, nautae masc.), 'charioteer' (aur?ga, aur?gae masc.), 'inhabitant' (incola, incolae masc.), 'pirate' (p?r?ta, p?r?tae masc.), 'writer' (scr?ba, scr?bae masc.), and 'poet' (po?ta, po?tae masc).
The first declension also holds three types of Greek nouns, derived from Ancient Greek's Alpha Declension. They are declined irregularly in the singular. Occasionally, these Greek nouns may be declined as if they were native Latin nouns, e.g. nominative athl?ta may be used instead of the original athl?t?s.
|-?, -?s f||-?s, -ae m||-?s, -ae m|
|accusative||-?n||-?n / -am||-?s|