Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English contamination

English taint (link)
English taint (link)
English cross-contamination (affix)
English recontamination (prefix)
English anticontamination (prefix)
English biocontamination (prefix)
English xenocontamination (prefix)
English microcontamination (prefix)
English radiocontamination (prefix)
English noncontamination (prefix)
Japanese コンタミネーション (borrowed)