Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
tăcea
←
Proto-Indo-European
*tak-
(derived)
←
Proto-Indo-European
*tHk-
(mention)
←
Proto-Italic
*takēō
(inherited)
←
Latin
tacēre
(inherited)
←
Latin
taceō
(mention)
→
Romanian
tăcere
(affix)
→
Romanian
tăcut
(mention)
→
Aromanian
tac
(cognate)