Pseudo- (from Greek ψευδής, pseudes, "false") is a prefix used in a number of language, often to mark something as a fake or insincere version.[1]
In English, the prefix is used on both nouns and adjectives. It can be considered a privative prefix specifically denoting disproximation, i.e. that the resulting word refers to something that has moved away from the core meaning of the base that the prefix is added to.[2] The meaning is the same in French and Greek, but in Greek it also attaches to other word classes such as verbs and adverbs.[3]