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mistake

In a sentence
Tom sa omylom postrelil do nohy.
Tom shot himself in the leg accidentally.
Omylom mu spadol tanier.
I dropped the plate accidentally.
Omylom som vzal jeho dáždnik.
I accidentally took his umbrella.
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.