Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
tagl
←
Proto-Germanic
*taglą
(derived)
←
Old Norse
tagl
(derived)
→
English
tail
(cognate)
→
Irish
dual
(cognate)
→
Icelandic
rófa
(link)