upsurge

English

Etymology

From up- +‎ surge.

Noun

upsurge (plural upsurges)

1. a sudden strong rise or flow

Verb

upsurge (third-person singular simple present upsurges, present participle upsurging, simple past and past participle upsurged)

1. (intransitive) to surge up, or to become stronger or greater