Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
grūt
→
English
grout
(inherited)
→
English
gruel
(derived)
→
Middle English
growte
(inherited)
→
Irish
grúdaigh
(derived)
→
Irish
grúdaire
(derived)