Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
klár
←
Proto-Germanic
*klawaraz
(inherited)
←
Middle Low German
klar
(borrowed)
←
Latin
clarus
(derived)
←
Old Norse
klárr
(inherited)