turd: [OE] Turd is an ancient word, traceable right back to Indo-European *drtom. This was formed from the base *dr-, *der- ‘flay, tear’ (source also of English tear), and so etymologically denoted that which is ‘separated’ from the body, like flayed skin, and hence ejected or excreted from the body. It passed into English via prehistoric Germanic *turdam. A distant relative is Latvian dirsti ‘defecate’. => tear[turd etymology, turd origin, 英语词源]