Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Sylheti
ꠀꠐ
←
Assamese
আঠ
(cognate)
←
Bengali
আট
(cognate)
←
Hindi
आठ
(cognate)
←
Sanskrit
अष्ट
(derived)
←
Urdu
آٹھ
(cognate)