Old Norse þjófr

← Proto-Germanic *þeubaz (inherited)

← Proto-Norse *ᚦᛖᚢᛒᚨᛉ (inherited)

← Proto-Norse ᛗᚨᚱᛁᚦᛖᚢᛒᚨᛉ (mention)

→ Old English þeof (cognate)

→ Danish tyv (derived)

→ Westrobothnian tjyv (inherited)

→ Old Danish thiuf (inherited)

→ Old Danish þiufær (inherited)

→ Old Swedish þiuver (mention)

→ Icelandic þjófur (inherited)

→ Norwegian Bokmål tyv (derived)

→ Norwegian Bokmål tjuv (derived)

→ Norwegian Nynorsk tjuv (inherited)

→ Old Norse Friðþjófr (mention)

→ Old Norse Alþjófr (affix)

→ Swedish tjuv (inherited)