toxifyEtymologyAttested since 1917, apparently a back-formation from detoxify. (attested since 1905). Equivalent to tox- + -ify.toxify means To make or render toxic. Lexicurio rates it Sui generis — a strength score of 87 out of 100.verbTo make or render toxic.“The experiments made with this objective showed that agar-gel could toxify a rat serum which had been heated at 45 an 50 C. for half an hour.”