gouache (n.)youdaoicibaDictYouDict[gouache 词源字典]
method of painting, 1882, from French gouache "watercolors, water-color painting" (18c.), from Italian guazzo "watercolor," originally "spray, splash, puddle, pool," from Latin aquatio "watering, watering place," from aquatus, past participle of aquari "to bring water for drinking," from aqua "water" (see aqua-).[gouache etymology, gouache origin, 英语词源]