Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
tó
←
Proto-Germanic
*tawwą
(inherited)
←
Icelandic
ull
(link)
←
Icelandic
þel
(link)
←
Old Norse
tó
(inherited)
←
Old Norse
tó
(inherited)