Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
laogh
←
Irish
lao
(cognate)
←
Manx
lheiy
(cognate)
←
Old Irish
lóeg
(inherited)
→
Scottish Gaelic
laoghan
(suffix)
→
Manx
lheiy
(cognate)