Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
cyn
←
Welsh
cynt
(mention)
→
Welsh
â
(link)
→
Welsh
cyngyd
(prefix)
→
Welsh
cynddrwg
(compound)
→
Welsh
cynghrair
(affix)
→
Welsh
cymysg
(prefix)
→
Welsh
cynifer
(affix)
→
Irish
chomh
(cognate)
→
Scottish Gaelic
cho
(cognate)