Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
leamhan
←
Old Irish
legam
(derived)
←
Old Irish
legamnach
(mention)
←
Old Irish
*leg-amon-
(mention)
←
Old Irish
legaid
(mention)
→
Irish
leamhandíonach
(compound)