Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
cors
←
Proto-Indo-European
*(s)kerbʰ-
(derived)
←
Latin
carex
(cognate)
←
Latin
scirpus
(cognate)
←
Old Irish
curchas
(cognate)
→
Irish
corrach
(cognate)
→
Latin
carex
(cognate)