nay·say I. \ˈnāˌsā\noun Etymology:nay (I) + say, n.; after the phrase to say one nay : refusal, denial II. \(ˈ) ̷ ̷| ̷ ̷\transitive verb Etymology:nay (I) + say, vb. : deny, refuse, oppose < there might have been … for anything he could naysay — W.F.DeMorgan > • naysayer\(ˈ) ̷ ̷| ̷ ̷ ̷ ̷\noun-s