Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Saterland Frisian
Oaindum
←
German
Eigentum
(cognate)
←
English
owndom
(cognate)
←
Saterland Frisian
oain
(suffix)
←
Saterland Frisian
dum
(suffix)
→
English
owndom
(cognate)