Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English rot
Old English rotian (inherited)
Middle English roten (inherited)
Middle English rotten (mention)
Proto-Germanic *rutāną (inherited)

English rotten (link)
English rotten (suffix)
English ret (link)
English rotgut (compound)
English rotting (affix)
English rotter (suffix)
English bitrot (compound)
English footrot (compound)
English linkrot (compound)
English rotproof (suffix)
English rottable (suffix)
English rotteth (suffix)
English rottest (suffix)
English rootrot (compound)
English hoofrot (compound)
English woodrot (compound)
English rotsome (suffix)
English heartrot (compound)
English LDAR (mention)
Alemannic German rääss (cognate)
Icelandic rot (link)