English

Adverb

pestiferously ‎(comparative more pestiferously, superlative most pestiferously)

1. In a pestiferous manner.
   • 1851, Herman Melville, Moby Dick, chapter 24

     After its first blunder-born discovery by a Dutchman, all other ships, long shunned those shores as pestiferously barbarous; but the whale-ship touched there.