Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
Satharn
←
Irish
Satarn
(mention)
←
Manx
Sarn
(cognate)
←
Latin
Saturnus
(derived)
←
Old Irish
Satharn
(inherited)