Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
gaesum
←
Gaulish
*gaisos
(borrowed)
←
Gaulish
*gaisom
(mention)
←
Proto-Celtic
*gaisos
(derived)
←
Welsh
gwayw
(mention)
←
Irish
ga
(mention)
←
Old Irish
gae
(mention)
→
Basque
gezi
(derived)
→
Irish
ga
(cognate)
→
Ancient Greek
γαῖσος
(derived)
→
Latin
gisarma
(mention)
→
Old Armenian
գայիսոն
(derived)