Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
tákn
←
Old English
tācn
(derived)
←
Proto-Germanic
*taikną
(inherited)
←
Proto-Germanic
*taikną
(mention)
←
Proto-Indo-European
*deyḱ-
(root)
←
Icelandic
teikn
(mention)
←
Old Norse
tákn
(inherited)
→
Icelandic
teikn
(mention)
→
Icelandic
algildistákn
(mention)
→
Icelandic
táknmál
(affix)
→
Icelandic
tjákn
(blend)
→
Icelandic
tákngervingur
(compound)
→
Icelandic
kyntákn
(compound)