Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
Lùnastal
←
Old Irish
Lugnasad
(inherited)
→
Scottish Gaelic
Lùn
(link)
→
Manx
Luanistyn
(cognate)