Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
ambos
←
Proto-Indo-European
*h₂m̥bʰi
(inherited)
←
Latin
ambo
(inherited)
←
Old Portuguese
ambos
(inherited)