Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Sylheti
ꠎꠂꠑ
←
Assamese
জেঠ
(cognate)
←
Bengali
জৈষ্ঠ্য
(cognate)
←
Sanskrit
जैष्ठ्य
(derived)
→
Assamese
জেঠ
(cognate)