Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Lepontic
ππππ
β
Gaulish
dede
(cognate)
β
Proto-Celtic
*dΔti
(inherited)
β
Proto-Indo-European
*dΓ©hβt
(inherited)
β
Proto-Indo-European
*dehβ-
(mention)
β
Celtiberian
tatuz
(cognate)