←
Old English -il (alter)
←
Proto-Germanic *-a-l- (inherited)
←
Proto-Germanic *-ilaz (inherited)
→
English -el (inherited)
→
English -el (inherited)
→
English -le (inherited)
→
English -le (inherited)
→
English -le (inherited)
→
Old English bydel (affix)
→
Old English þyrel (affix)
→
Old English wrot (affix)
→
Middle English -el (inherited)
→
Middle English -el (inherited)