Why is the ninth month called September?
1630s, from vapor + -ize. Originally "smoke tobacco;" later "convert into vapor" (1803), and "spray with fine mist" (1900). Related: Vaporized; vaporizing.
vaporize va·por·ize (vā'pə-rīz')v. va·por·ized, va·por·iz·ing, va·por·iz·es To convert or be converted into a vapor.