[adverb] [not gradable] [formal] - (from a place) out, or (from a point in time) forwardThey set forth on their travels in early June.From that day/time forth he never drank cider again.See also hold forth.To go back and forth means to go backwards and forwards several times.
FORTH
Meaning of FORTH in English
Cambridge English vocab. Кембриджский английский словарь. 2012