Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
leanbh
←
Old Irish
lenab
(inherited)
→
Irish
leanbhliacht
(affix)
→
Irish
leanbaí
(affix)
→
Irish
uchtleanbh
(affix)
→
Irish
leanbhín
(affix)
→
Manx
lhiannoo
(cognate)