Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
tyngdur
→
Icelandic
fjöltyngdur
(prefix)
→
Icelandic
tvítyngdur
(prefix)
→
Icelandic
eintyngdur
(prefix)
→
Icelandic
þrítyngdur
(prefix)