Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Japanese
パイ
←
English
pie
(borrowed)
←
English
pi
(borrowed)
←
Ancient Greek
πεῖ
(derived)
←
Latin
pi
(derived)