Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
port
←
English
port
(link)
←
Proto-Indo-European
*per- (fare)
(root)
←
Latin
portus
(derived)
←
Old Irish
port
(inherited)
←
Old Irish
port
(inherited)
→
Irish
aerfort
(affix)
→
Irish
taobhfort
(affix)
→
Irish
portach
(affix)