Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Hunsrik
naacht
←
Proto-Germanic
*nahts
(inherited)
←
Old High German
naht
(inherited)
←
Proto-Indo-European
*nókʷts
(inherited)