Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old High German
sāen
→
German
säen
(inherited)
→
Luxembourgish
séien
(inherited)
→
Old Norse
sá
(cognate)
→
Old Saxon
saian
(cognate)