upswarm

== English == === Etymology === From up- +‎ swarm. === 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. === References === “upswarm”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC. === Anagrams === warm-ups, warms up, warmups