Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English completion
English complete (suffix)
English ion (suffix)
Latin completio (borrowed)
Latin compleo (mention)

English incompletion (prefix)
English autocompletion (prefix)
English noncompletion (prefix)
English semicompletion (prefix)
English completionist (suffix)
English precompletion (prefix)
English completionism (suffix)
English bicompletion (prefix)
English uncompletion (prefix)
English cocompletion (prefix)
English postcompletion (prefix)
French complétion (borrowed)