Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Thai
ขมา
←
Proto-Indo-Iranian
*kšamH-
(root)
←
Khmer
ខមា
(cognate)
←
Pali
khamā
(borrowed)
←
Sanskrit
क्षम्
(root)
←
Sanskrit
क्षमा
(derived)
←
Thai
กษมา
(doublet)