Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Sylheti
ꠄꠇ
←
Bengali
এক
(cognate)
←
Hindi
एक
(cognate)
←
Proto-Indo-Iranian
*Háykas
(inherited)
←
Sanskrit
एक
(inherited)