Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Thees
←
German
These
(cognate)
←
English
thesis
(cognate)
←
French
thèse
(cognate)
←
Latin
thesis
(derived)
←
Dutch
these
(cognate)