Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
ceist
←
Latin
quaestiō
(derived)
←
Old Irish
ceist
(inherited)
→
Irish
aincheist
(affix)
→
Irish
ceistigh
(affix)
→
Irish
croscheist
(affix)
→
Irish
focheist
(affix)
→
Irish
ceisteach
(affix)