FORTH Meaning of FORTH in English ■ adverb formal or literary1》 out and away from a starting point. ↘so as to be revealed. 2》 onwards in time.Phrasesand so ~ and so on.OriginOE, of Gmc origin; related to fore- . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004