Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bourguignon
aâ
←
French
eau
(cognate)
←
Old French
iaue
(inherited)
←
Latin
aqua
(inherited)
←
Latin
aqua
(cognate)
→
Bourguignon
eâ
(cognate)