The word "aldehyde" comes from Latin. It was shortened from "alcohol dehydrogenatus" (dehydrogenated alcohol). The word aldehyde was created by Justus von Liebig. In the past, aldehydes were sometimes named after the corresponding alcohols, for example, "vinous aldehyde" for acetaldehyde. ("Vinous" is from the Latin word for wine, which is the traditional source of ethanol.)