Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English irksome
Old English weorcsum (inherited)
English irk (suffix)
English some (suffix)
Middle English irkesome (inherited)
Middle English irksum (mention)
Proto-Indo-European *werǵ- (root)

English irksomeness (suffix)
English irksomely (suffix)
English unirksome (prefix)