Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
singrar
←
Old French
singler
(borrowed)
←
Proto-Germanic
*seglą
(derived)
←
Old Norse
segl
(derived)
←
Old Portuguese
singrar
(inherited)