Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
estrar
←
English
strew
(cognate)
←
Galician
estrado
(back-formation)
←
Proto-Indo-European
*sterh₃-
(derived)
←
Latin
strātum
(derived)
→
Galician
estro
(back-formation)