Icelandic djúpur

← Proto-Germanic *deupaz (inherited)

← Proto-Indo-European *dʰewb- (root)

← Proto-Indo-European *dʰewb- (derived)

← Old Norse djúpr (inherited)

→ English deep (cognate)

→ German tief (cognate)

→ Faroese dýpd (cognate)

→ Icelandic dýpt (cognate)

→ Icelandic aðdjúpur (affix)