Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Saterland Frisian
oold
←
Proto-Germanic
*aldaz
(derived)
←
Old Frisian
ald
(derived)
→
English
old
(cognate)
→
Saterland Frisian
ooldful
(suffix)