Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Finnish
piika
←
Chuvash
пике
(cognate)
←
Estonian
piiga
(cognate)
←
Karelian
piika
(cognate)
←
Old Norse
píka
(cognate)
←
Swedish
piga
(cognate)
←
Votic
piika
(cognate)
→
Danish
pige
(derived)
→
Estonian
piiga
(cognate)
→
Finnish
vanhapiika
(affix)
→
Finnish
piikoa
(affix)
→
Finnish
lapsenpiika
(compound)
→
Finnish
käenpiika
(compound)
→
Finnish
piianpeili
(affix)
→
Finnish
ilmapiika
(compound)
→
Finnish
piikanen
(affix)
→
Finnish
sinipiika
(affix)
→
Old Norse
píka
(cognate)