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forwhy

American  
[fawr-hwahy, -wahy] / fɔrˈʰwaɪ, -ˈwaɪ /

adverb

  1. why; wherefore.


conjunction

  1. because.

forwhy British  
/ fɔːˈwaɪ /

adverb

  1. for what reason; why

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

conjunction

  1. (subordinating) because

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of forwhy

before 1000; Middle English; Old English for hwī. See for, why