Old English openian

← German öffnen (cognate)

← Middle Dutch openen (cognate)

← Proto-Germanic *upanōną (inherited)

← Proto-Germanic *upanaz (mention)

← Old High German offanōn (cognate)

← Dutch openen (cognate)

← Old Norse opna (cognate)

← Swedish öppna (cognate)

→ English open (inherited)

→ Old English openung (suffix)

→ Middle English openen (inherited)

→ Scots apen (inherited)