Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
leoma
←
Proto-Germanic
*leuhmô
(inherited)
←
Proto-Indo-European
*lewk-mon-
(derived)
←
Proto-Indo-European
*lewk-
(derived)
←
Icelandic
ljómi
(cognate)
←
Old Norse
ljómi
(cognate)
←
Old Saxon
liomo
(cognate)