Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
homar
←
French
homard
(borrowed)
←
French
houmar
(link)
←
Middle Low German
hummer
(derived)
←
Old Norse
humarr
(derived)