adv. and pred. a., properly phrase. [A prep.1 + BLOOM.] In or into bloom.

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1855.  Browning, Men & Women, II. Saul, 128. The fern-branches all round … Broke a-bloom.

2

1863.  Macm. Mag., Jan., 164. The whole hollow was abloom with the yellow gorse.

3

1876.  Miss Braddon, Josh. Hagg. Dau., I. v. 168. Sweet wild flowers abloom under their feet.

4