Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
pasam
←
Proto-Algonquian
*wa·p-aʔθemwa
(derived)
←
English
possum
(borrowed)
←
Powhatan
aposoum
(derived)