Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Danish
regne
←
Danish
regn
(cognate)
←
German
regnen
(cognate)
←
German
rechnen
(cognate)
←
English
rain
(cognate)
←
English
reckon
(cognate)
←
Proto-Germanic
*regnōną
(derived)
←
Proto-Germanic
*regną
(mention)
←
Proto-Germanic
*rekanōną
(derived)
←
Proto-Germanic
*rekanōną
(derived(da/nb))
←
Middle Low German
rekenen
(borrowed)
←
Icelandic
reikna
(cognate)
←
Dutch
rekenen
(cognate)
←
Norwegian Nynorsk
rekna
(cognate)
←
Old Norse
regna
(derived)
←
Swedish
räkna
(cognate)
→
Danish
regning
(affix)
→
Danish
lommeregner
(affix)
→
Danish
regnemaskine
(affix)
→
Danish
regneregel
(affix)
→
Danish
regnskab
(affix)
→
Norwegian Bokmål
regne
(derived)