Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Avestan
𐬚𐬭𐬁𐬙𐬀𐬭
←
Proto-Indo-Iranian
*traHtŕ̥
(inherited)
←
Proto-Indo-Iranian
*traH-
(mention)
←
Sanskrit
त्रातृ
(cognate)
→
Sanskrit
त्रातृ
(cognate)