English oaken

← Old English ācen (inherited)

← Old English ǣcen (mention)

← German eichen (cognate)

← English oak (affix)

← English -en (affix)

← Middle English oken (inherited)

← Middle English eken (mention)

← Proto-Germanic *aikīnaz (inherited)

← Icelandic eikinn (cognate)

← Dutch eiken (cognate)

→ Luxembourgish eechen (cognate)