Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Tocharian A
vak
←
Tocharian B
vek
(cognate)
←
Tocharian A
wak
(mention)
→
Tocharian B
vek
(cognate)