Gibberish

An imitative word meaning unintelligible speech or inarticulate chatter that dates from the 16th century. It has the suffix -ish to make it sound like a language. A whole collection of similar words like gibber, jibber, jabber, gabber, gabble, babble etc, all mean the same thing, namely unintelligible speech, and date from the 15th and 16th centuries. Shakespeare in Hamlet, Act I, Scene I, wrote, “A little ere the mightiest Julius fell, the graves stood tenantless, and the sheeted dead did squeak and gibber in the Roman streets.” These words are also thought to be imitative of the sounds apes and monkeys make.