Czech krát

← Czech krátký (mention)

← Czech ráz (mention)

← Proto-Indo-European *(s)ker- (derived)

← Lithuanian kartas (cognate)

← Proto-Slavic *kortъ (inherited)

← Proto-Slavic *kortъkъ (mention)

← Proto-Slavic *razъ (mention)

→ Czech dvakrát (compound)

→ Lithuanian kartas (cognate)