Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
þáttur
←
Proto-Germanic
*þēhtuz
(derived)
←
Old Norse
þáttr
(derived)
→
Alemannic German
Taache
(cognate)
→
Icelandic
þáttaskil
(mention)
→
Icelandic
taka þátt
(mention)
→
Icelandic
margþættur
(mention)
→
Icelandic
þáttaröð
(compound)
→
Icelandic
kynþáttur
(compound)