Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Swedish
att
←
Old Swedish
at
(inherited)
←
Old Swedish
at
(mention)
←
Old Swedish
at
(inherited)
←
Old Norse
þat
(derived)
←
Swedish
åt
(mention)
→
Danish
at
(cognate)
→
Danish
at
(cognate)
→
Norwegian Bokmål
at
(cognate)
→
Norwegian Nynorsk
at
(cognate)