←
Proto-Germanic *kaupaz (inherited)
←
Old Danish køpæ (derived)
←
Norwegian Bokmål kjøpe (mention)
←
Norwegian Bokmål kjøpe (link)
←
Norwegian Bokmål kjøper (link)
←
Old Norse kaupa (inherited)
→
Norwegian Bokmål kjøper (link)
→
Norwegian Bokmål innkjøp (compound)