Russian сыр

← Proto-Balto-Slavic *sū́ˀras (inherited)

← Proto-Indo-European *suHrós (inherited)

← Proto-Slavic *syrъ (inherited)

→ Southern Altai сыр (borrowed)

→ Bashkir сыр (borrowed)

→ Lower Sorbian sera (cognate)

→ Lithuanian sūris (cognate)

→ Latvian siers (mention)

→ Russian сыроварня (affix)

→ Russian сырок (affix)

→ Russian сырок (link)

→ Russian сыр-бор (affix)

→ Udmurt сыр (mention)

→ Uzbek sir (borrowed)