Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
eir
←
Old English
ār
(cognate)
←
Danish
ir
(cognate)
←
English
ore
(cognate)
←
Faroese
eir
(cognate)
←
Proto-Germanic
*aiz
(inherited)
←
Old High German
ēr
(cognate)
←
Norwegian
eir
(cognate)
←
Old Norse
eir
(inherited)