Russian из

← Proto-Indo-European *eǵʰs (derived)

← Proto-Indo-European *h₁eǵʰs (mention)

← Proto-Slavic *jьz (inherited)

→ English ex- (cognate)

→ Old Church Slavonic из (mention)

→ Latvian iz (cognate)

→ Russian наизусть (link)

→ Russian изгой (prefix)