Etymological insecticide
This story continues the attempts of the previous week to catch a flea. Anyone who will take the trouble to look at the etymology of the names of the flea, louse, bedbug, and their blood-sucking allies in a dozen languages will discover that almost nothing is known for certain about it. . This fact either means that we are dealing with very old words whose beginnings can no longer be discovered or that the names have been subject to taboo (consequently, the initial form is beyond recognition), or, quite likely, both factors were in play.