High Quality Content by WIKIPEDIA articles! Derivational morphology changes the meaning of words by applying derivations. Derivation is the combination of a word stem with a morpheme, which forms a new word, which is often of a different class. For example, develop becomes development, developmental or redevelop. The suffix -ation converts the verb nationalize, into the derived noun nationalization. The suffix -ize converts the noun plural, into the verb pluralize.