Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
ucht
←
Proto-Indo-European
*peg-
(derived)
←
Latin
pectus
(cognate)
←
Old Irish
ucht
(inherited)
→
Irish
móruchtúil
(affix)
→
Irish
uchtaigh
(affix)
→
Irish
uchtach
(affix)
→
Irish
uchtbhalla
(affix)
→
Irish
uchtleanbh
(affix)
→
Irish
uchtmhac
(affix)
→
Irish
uchtphláta
(affix)
→
Irish
uchtúil
(suffix)
→
Irish
uchtbharr
(affix)
→
Irish
uchtán
(suffix)
→
Irish
uchtóg
(affix)