Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
erta
→
English
ert
(derived)
→
Westrobothnian
ärtäs
(inherited)
→
Ancient Greek
ἄρδις
(cognate)
→
Icelandic
erta
(inherited)