UPSWARM

Etymology

Verb

upswarm (third-person singular simple present upswarms, present participle upswarming, simple past and past participle upswarmed)

(transitive) To rise in a swarm.

(intransitive) To cause to rise in a swarm.

Anagrams

• warm-ups, warms up, warmups

Source: Wiktionary

Up*swarm", v. i. & i.

Definition: To rise, or cause to rise, in a swarm or swarms. [R.] Shak. Cowper.

Source: Webster’s Unabridged Dictionary 1913 Edition