Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
trousar
←
Spanish
trousa
(link)
←
Spanish
trouso
(link)
←
Spanish
trouzo
(link)
←
Proto-Germanic
*drauzaz
(derived)
←
Proto-Germanic
*dreusaną
(mention)
←
Galician
trouzo
(mention)