Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
Jelune
←
Irish
Dé Luain
(cognate)
←
Latin
diēs Lūnae
(derived)
←
Middle Irish
día lúain
(inherited)