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

→ English atter (mention)
→ English mad as a hatter (derived)
→ Old English atorcoppe (affix)
→ Old English ætren (suffix)
→ Old English atorbære (suffix)
→ Old English atorlic (affix)
→ Old English ættrig (affix)
→ Old Norse eitr (cognate)