Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
eachother
←
Old English
ǣlċ ōþer
(inherited)
←
English
each
(affix)
←
English
other
(affix)
←
English
each other
(mention)
←
Middle English
ech other
(inherited)
←
Middle English
yche othere
(mention)
←
Middle English
ich othir
(mention)
←
Middle English
eche other
(mention)
←
Middle English
ilk oþer
(mention)