Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Saterland Frisian
Meerte
←
German
März
(borrowed)
←
Latin
martius
(derived)
←
Luxembourgish
Mäerz
(cognate)
←
German Low German
März
(cognate)