Proto-Indo-European *súHros

→ English sour (derived)

→ Afrikaans suur (inherited)

→ Bashkir шур (derived)

→ Bulgarian чорба (derived)

→ Kashubian sur (derived)

→ Danish sur (derived)

→ German sauer (derived)

→ Persian شور (derived)

→ Faroese súrur (derived)

→ Icelandic súr (derived)

→ Latin rumex (inherited)

→ Lithuanian sūris (inherited)

→ Norwegian Bokmål sur (derived)

→ Norwegian Nynorsk sur (derived)

→ Old Norse súrr (derived)

→ Polish ser (derived)

→ Russian сырой (derived)

→ Swedish sur (derived)