cavouco

(intransitive, transitive) to make a pit or hole
(broadly, transitive) to poke, to rummage, e.g. cavoucar o nariz (“to pick one's nose”)
(intransitive) to dig like an animal (like a dog or armadillo)

λάκκος

κοιλότητα εδάφους

From cavar (“to dig”).

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