词根：lud, lus = to play（游戏, 扮演）

  来自拉丁语的luder(=to paly)意为to laugh,to play。

同源词：

1. allude [对某事发笑al<ad(=to)+lud(=laugh, play)]
  vi. to  +sth 暗指；间接提到
  allusion n.暗指
  allusive adj. 暗指的
  Her drooping eyes allude to her profound fatigue. 她双眼低垂，说明她非常疲倦。

2. collusion [一起笑col<com(=together)+lus(=laugh, play)]
  n.同谋，勾结
  collude v. 同谋
  collusive adj.同谋的
  The airlines are sometimes thought to be guilty of collusion in ticket pricing. 有时航空公司会被指责相互串通垄断机票价格。

3. delude [由于可笑而使某人脱离正常状态de(=from)+lud(=laugh,play)]
  vt. 欺骗；哄骗；迷惑
  delusion n. 迷惑，欺瞒；错觉
  deIusive adj. 欺骗的；妄想的
  He deludes himself that he is handsome. 他自欺地认为自己长得很帅。

4. elude [笑着从危险状况中摆脱出来e<ex(=out)+lud(=laugh．piay)]
  vt.（巧妙地）逃脱，摆脱
  elusive adj.逃避的
  elusion n. 回避；选跑
  The criminal eluded the cops by stealing a car and driving away. 犯人躲开警察偷了一辆车逃跑了。

5. illusion [头脑对某事物闹着玩il<in(=on)+lus(=laugh,play)]
  n.幻想；错觉；假象
  illusionist n. 魔术师；空想家
  illusiva/illusory adj.幻影的；错觉的；迷惑人的
  Many old maids hold the illusion of perfect marriage well into their fifties. 许多老处女在五十岁以后仍然幻想着拥有完美的婚姻。

6. ludicrous
  adj.滑稽的，可笑的 *lud(=laugh)

7. prelude
  n.前奏曲；序幕 v.作为...的前奏（或序幕）*pre(=before),lud(=play)

8. interlude
  n.间奏；（话剧或歌剧等的）幕间；穿插事件 *inter(=between),lud(=play)
  interludes of bright weather 坏天气中间或有的晴天。

9. postiude
  n.后奏曲 *post(=after),lud(=play)

10. disllusion
  n.幻灭；觉醒 v.使幻灭；使醒悟（幻想破灭）《dis- = away》

词根词缀：ptomato-, ptomat-, pto-, -ptosia, -ptosis, -ptoma, -ptot-

【来源及含义】Greek: fall, a falling down of an organ; drooping, sagging; corpse

【同源单词】apoptosis, asymptomatic, asymptote, asymptotic, asymptotical, blepharoptosis