词根：tri, trit = to rub（擦）

  词根tri来源于拉丁语 terere 擦,trit为他的变体，意为to rub 。同义词根为fric。注意tri有同形异义词根：-tri- 三 / 三倍 / 三重，来源于拉丁语或希腊语 tri，如：tribe 部落 / 部族、tribal 部落的 / 种族的；有异形同义词根：-terg- / -ters- 擦 / 清洗，来源于拉丁语 tergere，如：deterge 使清洁 / 去污、absterge 去垢/擦去。

同源词：

1. attrition（用力擦at<ad(=to,intensive) + trit(=rub)）
  n.消耗，磨损；（由于死亡、退休等造成的）人员自然缩减
  attrit v.消耗；削弱
  attrited adj.磨损的
  The company is downsizing its staff by attrition rather than layoffs. 公司减员是通过人员自然缩减实现的，而非通过裁员。

2. contrite（用力擦的 con<com(=intensive,together) + trit(=rub)）
  adj.悔罪的，深感懊悔的
  contrition n.懊悔，忏悔
  My nephew seemed genuinely contrite about having taken money from my purse. 我侄子看起来是在真心懊悔从我钱包里拿钱的事。

3. detriment
  n.损害，损伤 *de(=away,intensive)
  to the detriment of his health 对他的健康有害

4. detrimental
  adj.有害的 *de(=away,intensive)
  detrimental to our interests 有损我们利益的

5. detritus
  n.[地]岩屑（岩石因风化作用掉下来的石粒或碎屑），碎石 *de(=away,intensive)

6. trite
  adj.（话、想法、意见等）阵腐的；无新意的

词根：trit = rud, 表示“磨擦”

attriton n. 磨擦；消耗（at+trust→给予相信→委托）

detriment n. 损害，不利（de坏+tri[=trit]+ment→磨坏了→损害）

trite a. 陈腐的（像被磨破了一样）

contrite a. 悔恨的（con共同+trite→身心全部磨擦→悔恨交加的）

词根词缀：trit-

【来源及含义】Latin: to rub; to thresh, to grind; to wear away; from tritus, past participle of terere, "to rub"

【相关描述】Don't confuse this trit- with another trit- which means "third".

【相关词根词缀】 Cross references of word families that are related directly, or indirectly, to: "rub, rubbing; wear away; wipe": bruxo, brux-; frica-, frict-; terg-; tribo-; -tripsy.

【同源单词】antiattrition, attrite, attrition, biodetritus, contrite, contritely

词根词缀：trito-, trit-

【来源及含义】Greek: third; a number which is often used as a prefix

【相关描述】Don't confuse this trit- with another trit- which means "rub, wear away".

【相关词根词缀】 Cross references of word families that are related, partially or totally, to: "three, third": terce-; terti-; tri-, tre; trigono-.

【同源单词】epitrite, tricuspid, tritagonist, tritanomaly, tritanopia, tritaph