Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Alemannic German
pflääge
←
German
pflegen
(cognate)
←
Middle High German
phlëgen
(inherited)
←
Old High German
plëgan
(inherited)
←
Dutch
plegen
(cognate)