Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Frisian
sanna
←
Proto-Germanic
*sanþōjan-
(inherited)
←
Proto-Germanic
*sanþaz
(mention)
→
Icelandic
senna
(cognate)