江こう都とMeanings1nounEdo (archaic name)archaiccolloquialArchaic, colloquial name for Edo (modern Tokyo). Used historically; now replaced by 江戸 (えど).See also: 江戸 (えど)「江こう都と」は江え戸どの古ふるい呼よび名なの一ひとつで、今いまはほとんど使つかわれない。"江都" is an old name for Edo and is rarely used today.