Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
mug
β
Proto-Celtic
*mogus
(inherited)
β
Gothic
πΌπ°π²πΏπ
(cognate)
β
Proto-Indo-European
*mogΚ°us
(inherited)
β
Irish
mogh
(inherited)