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Spanish word perezoso comes from Spanish pereza ((colloquial) a drag (something tedious). Laziness.), Spanish -oso (-ous, -ful, -y.)
pereza (Spanish)
(colloquial) a drag (something tedious). Laziness.
-oso (Spanish)
-ous, -ful, -y.
perezoso (Spanish)
Lazy Sloth (mammal).