Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
sechseckig
←
German
Sechseck
(suffix)
←
German
ig
(suffix)
←
Hunsrik
sechseckich
(cognate)