Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
brȳdguma
→
English
bridegroom
(inherited)
→
English
groom
(derived)
→
Middle English
bridegome
(inherited)
→
Old High German
brutigomo
(cognate)