What is portmanteau definition?

A portmanteau is a word that is created by blending two or more words, often from different languages, to form a new word. The word itself is made up of two French words, "porter" meaning "to carry" and "manteau" meaning "coat", which were used to describe a type of suitcase with two compartments that folded together. Today, the term is primarily used to describe words that blend the sounds and meanings of two or more words to create a new word. Examples of portmanteau words include "Brangelina" (Brad Pitt + Angelina Jolie), "spork" (spoon + fork), and "chillax" (chill + relax). Portmanteau words are often used informally and can be found in a variety of contexts, from popular culture to everyday conversation.