Significatio vocis -ucus | Babel Free

Definitiones

1. used to form attributive nouns from nominals, often names of plants.
   adjective, declension-1, declension-2, morpheme, noun, suffix
2. used to form deverbal nouns meaning “one who tends to do X”.
   adjective, declension-1, declension-2, morpheme, noun, suffix
3. used to form some adjectives.
   adjective, declension-1, declension-2, morpheme, noun, suffix

Exempla

“lact- (“milk”) + -ūcus → lactūca (“lettuce”), literally “[that with] milky [latex]””

“mandō (“chew”) + -ūcus → mandūcus (“glutton”)”

Gradus CEFR