Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
Lughnasadh
←
Irish
Lughnasadh
(derived)
←
Irish
Lúnasa
(mention)
←
Old Irish
Lugnasad
(derived)