Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Sanskrit
केकर
←
Irish
caoch
(cognate)
←
Gothic
𐌷𐌰𐌹𐌷𐍃
(cognate)
←
Proto-Indo-European
*káykos
(inherited)
←
Latin
caecus
(cognate)
←
Dacian
koiko
(cognate)