I. əˈ- adverb
Etymology: Middle English adoun, adoune, from Old English adūne, of dūne, from a- (from of ) or of off, from + dūne, dative of dūn hill — more at of , down
archaic : down
II. preposition
Etymology: Middle English adoun, adoune, from adoun, adoune, adverb
: down
adown the long years — G.B.Shaw