Wiktionary
vb. (context archaic English) (en-third-person singular of: betray)
Usage examples of "betrayeth".
Our faith in others betrayeth wherein we would fain have faith in ourselves.
He, however, who whitewasheth his house, betrayeth unto me a whitewashed soul.
His step betrayeth whether a person already walketh on his own path: just see me walk!
Thieves that are saved by their books and clergy, for the first offence, if they have stolen nothing else but oxen, sheep, money, or such like, which be no open robberies, as by the highway side, or assailing of any man's house in the night, without putting him in fear of his life, or breaking up his walls or doors, are burned in the left hand, upon the brawn of the thumb, with a hot iron, so that, if they be apprehended again, that mark betrayeth them to have been arraigned of felony before, whereby they are sure at that time to have no mercy.
And whilst I am silent and believe that it is hid with me, he himself cannot keep silence concerning it, but straightway betrayeth me and himself, and goeth his way.