Since 匕 is included here: 姥 : 女 老 匕 perhaps 匕 should also appear in these? 老 : 老 咾 : 口 老 嗜 : 口 日 老 耆 : 日 老 耄 : 毛 老 蓍 : 日 老 艾 蛯 : 虫 老 鰭 : 魚 田 日 老 杰 (I note that 老, which is included in all of these lines, appears to be actually representing only its top part, that is, 耂 or http://www.edrdg.org/wwwjdic/gif212/js05.png )