Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
lok
→
Danish
låg
(inherited)
→
German
Loch
(cognate)
→
Westrobothnian
lakk
(inherited)
→
Scanian
lug
(inherited)
→
Icelandic
lok
(inherited)
→
Latin
luma
(cognate)
→
Norwegian Bokmål
lokk
(derived)
→
Norwegian Nynorsk
lok
(derived)
→
Norwegian Nynorsk
lokk
(derived)
→
Swedish
lock
(inherited)