Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Estonian
öö
←
Finnish
yö
(cognate)
←
Proto-Finnic
*öö
(inherited)
←
Hungarian
éj
(cognate)
←
Ingrian
öö
(cognate)
←
Komi-Permyak
ой
(cognate)
←
Komi-Zyrian
вой
(cognate)
←
Karelian
yö
(cognate)
←
Livonian
īe
(cognate)
←
Ludian
üö
(cognate)
←
Mansi
йӣ
(cognate)
←
Northern Sami
idja
(cognate)
←
Inari Sami
ijjâ
(cognate)
←
Udmurt
уй
(cognate)
→
Estonian
kesköö
(affix)
→
Estonian
ööpott
(compound)
→
Estonian
jõuluöö
(compound)
→
Estonian
ööklubi
(compound)
→
Estonian
öötöö
(compound)
→
Estonian
ööliblikas
(compound)
→
Finnish
yö
(cognate)
→
Ingrian
öö
(cognate)
→
Livonian
pǟvaīe
(compound)
→
Mansi
йӣ
(cognate)
→
Livvi
yö
(cognate)
→
Votic
öö
(cognate)