Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English reckless
Old English rēcelēas (inherited)
German ruchlos (cognate)
English reck (suffix)
English less (suffix)
Middle English rekles (inherited)
Middle English reckeles (mention)
Middle English rekkeles (mention)
Middle English recheles (mention)
West Frisian roekeleas (cognate)
German Low German ruuklos (cognate)
Dutch roekeloos (cognate)

English rash (link)
English recklessness (suffix)
English recklessly (suffix)
English reckful (link)
English wretchless (mention)
English retchless (cognate)
English recklesser (suffix)
English recklessest (suffix)
Danish ryggesløs (cognate)
German ruchlos (cognate)
Dutch roekeloos (cognate)
Portuguese descuido (link)