Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
ploen
←
German
plagen
(cognate)
←
English
plague
(cognate)
←
Old High German
plāgen
(inherited)
←
Dutch
plagen
(cognate)
←
Swedish
plåga
(cognate)