Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English decadal
English decade (suffix)
English al (suffix)

English year (link)
English interdecadal (prefix)
English multidecadal (prefix)
English decadally (suffix)
English intradecadal (prefix)
English subdecadal (prefix)