English edit

Etymology edit

poisonous +‎ -ly

Adverb edit

poisonously (comparative more poisonously, superlative most poisonously)

  1. In a poisonous manner.
    • c. 1900, Thomas Edison, quotation
      The x-ray had affected poisonously my assistant, Mr. Dally.
    • 1918, W[illiam] B[abington] Maxwell, chapter XII, in The Mirror and the Lamp, Indianapolis, Ind.: The Bobbs-Merrill Company, →OCLC:
      To Edward [] he was terrible, nerve-inflaming, poisonously asphyxiating. He sat rocking himself in the late Mr. Churchill's swing chair, smoking and twaddling.
  2. (obsolete) Using poison.