Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
fjórir
←
Danish
fire
(cognate)
←
Faroese
fýra
(cognate)
←
Proto-Germanic
*fedwōr
(inherited)
←
Old Norse
fjórir
(inherited)
→
Alemannic German
vier
(cognate)
→
Icelandic
fjögur þúsund
(mention)
→
Icelandic
fjarki
(mention)
→
Luxembourgish
véier
(cognate)