Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
adhar
←
Ancient Greek
ἀήρ
(derived)
←
Latin
āēr
(derived)
←
Old Irish
aer
(inherited)
→
Scottish Gaelic
leòsan-adhair
(compound)