?1518 A. Barclay tr. D. Mancinus Myrrour Good Maners sig. Aivv, Honest name, obumbryng nat his lyght.
c1550 R. Bieston Bayte Fortune sig. Bj, And death‥at last him doth obumbre.
1558 W. Forrest Hist. Grisild the Second (1875) i. 30 Muche prudently this wise consyderinge, Whois example inducethe to lightnes Obumbrethe of Grace the glossinge brightnes.