Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
sökkva
←
Proto-Germanic
*sinkwaną
(derived)
←
Proto-Germanic
*sankwijaną
(derived)
←
Proto-Indo-European
*sengʷ-
(derived)
←
Old Norse
søkkva
(derived)
←
Old Norse
søkkva
(derived)
→
Old English
sincan
(cognate)