Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
geolu
←
Proto-Germanic
*gelwaz
(inherited)
←
Proto-West Germanic
*gelu
(inherited)
←
Proto-Indo-European
*ǵʰelh₃-
(root)
←
Proto-Indo-European
*ǵʰelh₃-
(derived)
→
Old High German
gelo
(cognate)
→
Old Saxon
gelo
(cognate)