therefor \(ˈ) ̷ ̷| ̷ ̷\adverb Etymology: Middle English therfor, therfore, therefor, therefore for that, for that reason, from ther, there there + for, fore for 1.: for that : in return for that < reasons therefor > < issued bonds therefor > < when the need therefor no longer exists > < substituting therefor a more general term > 2.: therefore