Third Declension Twin-Termination Adjectives

Adjectives of the third declension have either one, two or three gendered endings.

• Triple-termination: ācer, ācris, ācre (sharp) [see here]
• Twin-termination: levis (m/f), leve (light)
• Single-termination: …these are complicated. I’ll address them in a coming post

Twin-Termination Formation

Adjectives of the third declension with two terminations are declined as follows:

Here are some additional twin-termination thirds to practice declining:

• faenebris, faenebre: lent at interest
• fūnebris, fūnebre: funereal
• illūstris, illūstre: shining, famous
• lūgubris, lūgubre: mournful
• mediocris, mediocre: (usually) moderate; (rarely) ordinary
• muliebris, muliebre: effeminate

The Essential AG: 116

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