Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
ealgian
←
Proto-Germanic
*algōną
(inherited)
←
Proto-Indo-European
*h₂lek-
(derived)
→
Ancient Greek
ἀλέξω
(cognate)
→
Sanskrit
रक्षा
(cognate)
→
Sanskrit
रक्ष्
(cognate)
→
Sanskrit
रक्षति
(cognate)