Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Tocharian B
ārc-
←
Proto-Tocharian
*ārk
(derived)
←
Sanskrit
अर्हति
(cognate)
←
Tocharian B
*ārk
(mention)
→
Tocharian B
ārk
(mention)