Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Italic
*dekem
→
Latin
decimus
(mention)
→
Piedmontese
des
(inherited)
→
Sardinian
deche
(inherited)
→
Sardinian
deghe
(inherited)
→
Umbrian
𐌃𐌄𐌔𐌄𐌌
(inherited)