Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
lus
←
Proto-West Germanic
*lūs
(inherited)
←
Old High German
lūs
(cognate)
←
Old Norse
lús
(cognate)