Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
in-to
←
Old English
intō
(inherited)
←
Middle English
in
(compound)
←
Middle English
to
(compound)
→
English
into
(inherited)