Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
roc
←
Irish
roc ga nimhe
(link)
←
Irish
roc iolair
(link)
←
Irish
roc nimhe
(link)
←
Irish
rocach
(link)
←
Old Irish
roc
(inherited)
→
English
ruck
(cognate)
→
Irish
rocach
(affix)