Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
madar
←
Irish
mádar
(alter)
←
Irish
madra
(alter)
←
Irish
madar fraoigh
(link)
→
English
madder
(cognate)
→
Irish
madra
(alter)