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

English costal (doublet)
English bicoastal (prefix)
English noncoastal (prefix)
English coastally (suffix)
English tricoastal (prefix)
English intercoastal (prefix)
English subcoastal (prefix)
English midcoastal (prefix)
English palaeocoastal (prefix)
Norwegian Nynorsk kostal (cognate)