rare. Forms: see prec.; also 4–5 traysen, trassen. [f. prec. Cf. OF. traisonner to betray.] trans. To betray; to act treasonably towards.

1

13[?].  K. Alis., 723. Thy fadir hastow tresond here!

2

c. 1330.  R. Brunne, Chron. (1810), 105. Þei wer fulle wele knowen, þat wild haf tresond him.

3

c. 1374.  Chaucer, Troylus, IV. 410 (438). To traysen [v.r. trassen] a wight þat trewe is vn-to me.

4

1890.  L. Lewis, Proving of Gennad, xv. 104. Ere morning, thou shalt know who treasons thee.

5