Russian урок

← Old East Slavic урокъ (inherited)

← Russian заня́тие (link)

← Russian класс (link)

← Russian ле́кция (link)

← Russian поуче́ние (link)

← Russian предме́т (link)

← Proto-Slavic *urokъ (inherited)

← Proto-Slavic *rok- (mention)

→ Finnish urakka (borrowed)