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reason

In a sentence
Prišiel si o rozum.
You've lost your mind.
Má krásu aj rozum.
She has both beauty and brains.
Examples from Tatoeba (CC BY 2.0 FR).
Source
Slovak National Corpus (SNK) ↗English gloss from the frequency publish path. Example sentences from Tatoeba (CC BY 2.0 FR).
Full attribution on References.