Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
írar
←
Old Irish
Ériu
(borrowed)
→
Faroese
íri
(derived)
→
Latvian
īrs
(cognate)
→
Old Norse
írskr
(suffix)