←
Proto-Germanic *upanaz (inherited)
←
Middle High German offen (inherited)
←
Old High German offan (inherited)
←
Old High German ofan (mention)
←
Old High German ophan (mention)
←
Low German open (cognate)
←
Low German apen (mention)
←
Swedish öppen (cognate)
→
Old English open (cognate)
→
Westrobothnian yppe (cognate)
→
Alemannic German offe (cognate)
→
Icelandic opinn (mention)
→
Luxembourgish oppen (cognate)
→
Norwegian Bokmål åpen (cognate)
→
Norwegian Nynorsk open (cognate)
→
Pennsylvania German uffne (cognate)
→
Pennsylvania German uffe (cognate)
→
Swedish öppen (mention)