An example of to gainsay is to go against a popular opinion.
transitive verb-·said′ , -·say′ing
- to deny
- to contradict
- to speak or act against; oppose
Origin of gainsayMiddle English geinseggen from gein- from Old English gegn, against (see again) + secgan (see say)
transitive verbgain·said, gain·say·ing, gain·says,
- To declare to be false; deny. See Synonyms at deny.
- To oppose (someone), especially by contradiction: “She was going to fashion the end of her existence in her own way, and in this determination she would not be gainsaid” ( Louis Auchincloss )
Origin of gainsayMiddle English gainsayen gain- against ( from Old English gegn- ) sayen to say ( from Old English secgan ; see say . )
(third-person singular simple present gainsays, present participle gainsaying, simple past and past participle gainsaid)
From Middle English gainsayen, ȝeinseggen (“to say against, say in opposition to”), equivalent to gain- + say.