Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English coitus
Proto-Indo-European *h₁ey- (root)
Latin coitus (mention)

English love (link)
English poon (link)
English postcoitus (prefix)
English coitarche (affix)
English coitize (mention)
English coitophobia (affix)
English precoitus (prefix)
Volapük koit (cognate)