Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Marathi
कठीण
←
Bengali
কঠিন
(cognate)
←
Gujarati
કઠિન
(cognate)
←
Hindi
कठिन
(cognate)
←
Kannada
ಕಠಿನ
(cognate)
←
Punjabi
ਕਠਿਨ
(cognate)
←
Punjabi
کٹھِن
(mention)
←
Punjabi
ਕਠਨ
(mention)
←
Punjabi
کٹھن
(mention)
←
Sanskrit
कठिन
(borrowed)