advb. phr.; also arore. [A prep.1 + ROAR sb.] In a roar, roaring.
[c. 1305. Pains of Hell, 180, in O. E. Misc., 216. With a stynch gurd out arore.]
1461. Marg. Paston, in Lett., 422, II. 65. The byll hathe set the pepyll in thys contre arore.
1836. Blackw. Mag., XXXIX. 842. Hail! day of storms! with thy woods a-roar like rivers, and thy rivers a-roar like seas!