Old Norse þungr

← Proto-Germanic *þunguz (inherited)

← Proto-Indo-European *téngʰus (inherited)

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

← Lithuanian tingus (cognate)

← Serbo-Croatian težak (cognate)

← Proto-Slavic *tęžьkъ (cognate)

→ Danish tung (derived)

→ Faroese tungur (inherited)

→ Westrobothnian tong (inherited)

→ Icelandic þungur (inherited)

→ Lithuanian tingus (cognate)

→ Norwegian Bokmål tung (derived)

→ Norwegian Nynorsk tunge (cognate)

→ Norwegian Nynorsk tung (inherited)

→ Norwegian Nynorsk yngje (mention)

→ Old Norse þungleikr (suffix)

→ Swedish tung (derived)

→ Swedish tyngd (mention)