I. fȯrˈ(h)wī, fȯ(ə)ˈ- adverb
Etymology: Middle English, from Old English for hwī, for hwȳ, from for (I) + hwī, hwȳ, instr. of hwæt what — more at what
chiefly dialect : why , wherefore
II. conjunction
Etymology: Middle English, from forwhy, adverb
archaic : because , for , since