It is also called 'Suigensho,' written as 水言抄 in Japanese, which is derived from the radicals of the two kanjis '江談,' i.e. the left-hand part of 江 and the left-hand part of 談, which respectively represent "水" (pronounced as "sui") and "言" (pronounced as "gen").
「江談」二字の偏を取って「水言抄」ともいう。