Old Norse súrr

← Old English sūr (cognate)

← Proto-Germanic *sūraz (inherited)

← Old High German sūr (cognate)

← Proto-Indo-European *súHros (derived)

→ Old English sur (cognate)

→ Danish sur (derived)

→ Faroese súrur (derived)

→ Old Swedish sur (inherited)

→ Old High German sur (mention)

→ Icelandic súr (inherited)

→ Norwegian Bokmål sur (derived)

→ Norwegian Nynorsk sur (derived)

→ Old Norse súrleikr (suffix)

→ Swedish sur (inherited)