Obs. [f. BYSEN v. (in sense of ON. býsna to portend) + -ING2.] Ill-boding, portentous, monstrous, frightful; also quasi-sb. a monster.
c. 1375. ? Barbour, St. Pelagia, 268. To mak hethinge Of me as of a bysninge thinge. Ibid., St. Ninian, 645. Sa wes it borne a bysnynge For a-gane kynd wes it sa Þat bak-wart stud hele & ta.
1501. Douglas, Pal. Hon., 625. Ilk wicht hes sum weilfair Saif me bysning. Ibid., 740. In till sum bysning beist transfigurat me.