Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Saterland Frisian
deertou
←
German
dazu
(cognate)
←
English
thereto
(cognate)
←
Old Frisian
thērtō
(inherited)
←
Saterland Frisian
deer
(affix)
←
Saterland Frisian
tou
(affix)
→
English
thereto
(cognate)