Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
leataobh
←
Irish
leath-
(affix)
←
Irish
taobh
(affix)
→
Irish
leataobhach
(affix)
→
Manx
lhiattee
(cognate)