Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
atteindre
←
Old French
ateindre
(inherited)
←
Old French
ataindre
(mention)
←
Latin
attingere
(derived)
←
Latin
attingō
(mention)
←
Latin
tango
(mention)
→
Catalan
atènyer
(cognate)
→
French
advenir
(mention)
→
French
atteignable
(suffix)
→
Old French
avenir
(mention)
→
Occitan
aténher
(cognate)