One way to hold it: something that should be there has fallen away. In a product, a piece is missing or wrong, so it does not work as it should. In a person's loyalty, the same falling-away happens — they were on this side, and now they are not. The two uses look unrelated, but they are the same word doing the same thing to different objects.
From the word’s history
Both are from Latin defectus, past participle of deficere "to fail, desert" (de- "down, away" + facere "to do, make"). The noun (early 15c.) first meant "want or lack of anything"; the verb "to desert, revolt" appears in the 1590s — Latin deficere already carried both the "falling short" and the "falling away" readings.
兩個意思同源,都來自拉丁語 defectus(deficere「失敗、背離」的過去分詞,de-「向下、離開」+ facere「做」)。名詞在十五世紀初的意思是「缺少、不足」,動詞「叛離」則出現在 1590 年代——拉丁語的 deficere 本來就同時帶有「不足」和「脫離」兩種讀法。
Etymonline (etymonline.com/word/defect)
登入就可以看每一支怎麼連回核心畫面。
原始詞典資料7 筆記錄
以下是外部詞典記錄的用法,摘錄並精簡格式,我們還沒有寫成教學內容。上面的說明才是我們自己寫的;有些用法可能上面已經講過了。
defectnoun/ˈdiːfɛkt/
- 1
A fault or malfunction.
- a defect in the ear or eye; a defect in timber or iron; a defect of memory or judgment
- Among boys little tenderness is shown to personal defects.
- 2
The quantity or amount by which anything falls short.
- and the indefatigable application with which they have supplied the defects of early culture.
- 3
mathematicssciencesA part by which a figure or quantity is wanting or deficient.
defectverb/dɪˈfɛkt/
- 1
To abandon or turn against; to cease or change one's loyalty, especially from a military organisation or political party.
- Capitalizing on the restive mood, Mr. Farage, the U.K. Independence Party leader, took out an advertisement in The Daily Telegraph this week inviting unhappy Tories to defect. In it Mr. Farage sniped that the Cameron government — made up disproportionately of career politicians who graduated from Eton and Oxbridge — was “run by a bunch of college kids, none of whom have ever had a proper job in their lives.”
- 2
governmentmilitarypoliticsTo desert one's army, to flee from combat.
- 3
governmentmilitarypoliticsTo join the enemy army.
- 4
lawTo flee one's country and seek asylum.
- Passing through Thailand, she submitted a handwritten statement agreeing to defect, a requirement for North Korean refugees to be allowed to enter the South.
摘錄自 英文維基詞典 English Wiktionary,已精簡格式;依 CC BY-SA 4.0 授權使用,改動後的內容同樣以此授權提供。