Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Volapük
koit
←
Catalan
coit
(cognate)
←
German
Koitus
(cognate)
←
English
coitus
(cognate)
←
Esperanto
koito
(cognate)
←
Spanish
coito
(cognate)
←
Basque
koito
(cognate)
←
French
coït
(cognate)
←
Hungarian
koitusz
(cognate)
←
Ido
koito
(cognate)
←
Italian
coito
(cognate)
←
Latin
coitus
(derived)
←
Dutch
coïtus
(cognate)
←
Portuguese
coito
(cognate)
←
Russian
ко́итус
(cognate)
→
Volapük
koitöm
(suffix)
→
Volapük
koitön
(suffix)