Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
séier
←
German
sehr
(cognate)
←
English
sore
(cognate)
←
Proto-Germanic
*sairaz
(inherited)
←
Middle High German
sēr
(inherited)
←
Old High German
sēr
(inherited)
←
Dutch
zeer
(cognate)