←
Old English acan (inherited)←
Middle English ache (affix)←
Middle English -en (affix)←
Middle English eken (alter)←
Middle English æcen (alter)←
Middle English oken (alter)←
Proto-Germanic *akaną (derived)→
English ache (inherited)→
English ake (inherited)→
Middle English ache (mention)→
Middle English ache (link)→
Middle English oken (alter)