Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
blása
←
Proto-Germanic
*blēsaną
(inherited)
←
Proto-Indo-European
*bʰleh₁-
(root)
←
Old Norse
blása
(inherited)
→
Luxembourgish
blosen
(cognate)