Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
o
←
Latin
O
(link)
←
Latin
ô
(alter)
←
Latin
(alter)
←
Latin
for the vocative particle
(alter)
←
Latin
ōh
(alter)
←
Latin
(alter)
←
Latin
for the interjection meaning "oh"
(alter)
→
English
O
(derived)