§114. THIRD DECLENSION (CONSONANT AND i-STEMS)

Adjectives of the Third Declension are thus classified:—

• Adjectives of Three Terminations in the nominative singular,—one for each gender: as,ācer, ācris, ācre.
• Adjectives of Two Terminations,—masculine and feminine the same: as, levis (M., F.), leve (N.).
• Adjectives of One Termination,—the same for all three genders: as, atrōx.

a. Adjectives of two and three terminations are true i-stems and hence retain in the ablative singular -ī, in the neuter plural -ia, in the genitive plural -ium, and in the accusative plural regularly -īs (see §§ 73 and 74).¹