Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Mozarabic
فيليه
←
Proto-Indo-European
*dʰeh₁y-li-os
(inherited)
←
Old Latin
fīlios
(inherited)
←
Latin
fīlius
(inherited)
←
Old Spanish
fijo
(cognate)
←
Old Portuguese
fillo
(cognate)