Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Norwegian Nynorsk
geir
←
Irish
ga
(cognate)
←
Proto-Germanic
*gaizaz
(inherited)
←
Proto-Indo-European
*ǵʰey-
(root)
←
Proto-Indo-European
*ǵʰoysós
(inherited)
←
Proto-Indo-European
*ǵʰey-
(derived)
←
Old Norse
geirr
(inherited)