Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Germanic
*kutan
→
English
cottage
(derived)
→
Old English
cot
(mention)
→
German
Kate
(derived)
→
Dutch
kot
(mention)
→
Polish
koteria
(mention)