Old Norse þjóna

← German dienen (cognate)

← Proto-Indo-European *tekʷ- (root)

→ Icelandic þjóna (inherited)

→ Norwegian Bokmål tjene (derived(nb/da))

→ Norwegian Bokmål tjene (derived)

→ Norwegian Nynorsk tena (inherited)

→ Norwegian Nynorsk tene (inherited)

→ Old Norse þjónusta (mention)

→ Old Norse þjónan (suffix)

→ Swedish tjäna (inherited)