Catalan language:

The process of morphological derivation in Catalan follows the same principles as the other Romance languages, where agglutination is common. Many times, several affixes are appended to a preexisting lexeme, and some sound alternations can occur, for example electric [lktrik] ("electrical") vs. electricitat [lktrisitat]. Prefixes are usually appended to verbs, for as in preveure ("foresee").

Please answer a question about this article. If the question is unanswerable, say "unanswerable". What is common in Romance languages?
agglutination