Mesoclisis is a grammatical term that refers to a type of infixation in which a clitic is placed within the body of a verb. This phenomenon is relatively obscure, and there are few common synonyms for it. One term that is sometimes used is "infixation," which broadly refers to the insertion of an element within a word. Another possible synonym is "intervocalic cliticization," which specifies that the clitic is inserted between two vowels in the main verb. Other related terms include "verbal affixation," "derivation by insertion," and "lexical midfixation." While these terms may not be interchangeable with mesoclysis in all contexts, they are often used in discussions of complex morphological processes in language.