Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Middle English treden
Old English tredan (inherited)
Middle English trede (alter)
Middle English treedyn (alter)
Middle English treede (alter)
Middle English treeden (alter)
Middle English tred (link)
Middle English tredel (link)
Middle English tredynge (link)
Middle English tred (affix)
Middle English -en (affix)
Proto-Germanic *trudaną (inherited)
Proto-West Germanic *tredan (inherited)
Scots tred (link)

English tread (inherited)
English tread (mention)
English trod (mention)
Middle English tred (back-formation)
Middle English tredynge (affix)