upbreak

present singular third person upbreaks · participle present upbreaking · past upbroke · participle past upbroken

1. intransitiveTo break upwards; to force away or passage to the surface.

plural upbreaks

1. A break-up or division.

   The most ignorant will be wiser than the wisest now is by the time these words can be published, but we think this anticipation is likely to be realised: the probability of upbreak in the "Church" itself increases as the hour of the meeting of the Council approaches.

   1870, The British and Foreign Evangelical Review, volume 19, page 134

2. A breaking upward or bursting forth; an upburst.

   the upbreak of the fountains of my heart

   1856, Elizabeth Barrett Browning, “Seventh Book”, in Aurora Leigh, London: Chapman and Hall, […], published 1857, →OCLC