Old Norse knappr

→ English nep (derived)

→ Danish knap (inherited)

→ Irish cnaipe (derived)

→ Irish cnap (derived)

→ Westrobothnian knapp (inherited)

→ Icelandic hnappur (mention)

→ Icelandic hneppa (mention)

→ Norwegian Bokmål knapp (derived)

→ Norwegian Nynorsk knapp (derived)

→ Elfdalian knapp (derived)

→ Swedish knapp (derived)