Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
mér
←
Old English
mæġer
(cognate)
←
Ancient Greek
μακρός
(cognate)
←
Proto-Indo-European
*mh₂ḱrós
(derived)
←
Latin
macer
(cognate)
→
Irish
méar
(inherited)
→
Scottish Gaelic
meur
(inherited)
→
Manx
mair
(inherited)