motvalise

A mot-valise is a linguistic term describing a word formed by blending parts of two or more words to create a new lexical unit. It is the French equivalent of the English term portmanteau. Mot-valises typically merge phonemes or syllables from contributing words to convey a combined meaning, often with a playful or inventive effect.

Common French examples include franglais (français + anglais), describing a hybrid language; adulescent (adulte + adolescent), a label for a young adult who exhibits traits of both groups; and the longer expression métro-boulot-dodo, which blends three related concepts into a compact phrase. In practice, mot-valises appear in branding, media, and everyday speech, and they can cross into other languages.

Etymology and scope: The term mot-valise literally means "word-suitcase" in French, a metaphor for packing elements from several words into a single unit. While the concept is widely used in many languages, the French term is particularly common in linguistic descriptions and media discourse. It is distinct from acronyms or initialisms in that it typically combines parts of words rather than using only their first letters, and it often preserves sound patterns from the source words.