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