You can picture a 'fund' as a pot of money set aside as a base to draw from. It is not money you spend as it comes in — it is money gathered and kept for one purpose, sitting there like a reserve you dip into when the moment comes.
From the word’s history
'Fund' came into English in the 1670s from French 'fond' 'a bottom, ground', from Latin 'fundus' 'bottom, foundation, piece of land' (same root behind 'foundation' and 'fundamental'). It first meant a merchant's basic stock or capital — the 'bottom' you build on — and by the 1690s meant a store of money kept for a purpose. So a fund is literally the financial 'floor' you stand on and draw from, which is exactly its modern core.
fund 在 1670 年代從法語 fond「底、地面」進入英語，再往上溯是拉丁語 fundus「底部、基礎、一塊地」（和 foundation 基礎、fundamental 根本 同源）。它最早指商人「墊底」的本錢——你立足其上的那個底——到 1690 年代才變成「為某目的留存的一筆錢」。所以 fund 字面上就是財務上那塊「地板」：你站在上面、也從裡面往外拿，這正好就是它現代的核心。
etymonline.com/word/fund ; etymonline.com/word/fundus (Fr. fond < L. fundus 'bottom, foundation', PIE *bhudh- 'bottom, base')
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。
fundnoun/ˈfʌnd/
- 1
A sum or source of money.
- the fund of a bank, commercial house, manufacturing corporation, etc.
- a fund for the maintenance of underprivileged students
- 2
An organization managing such money.
- 3
A money-management operation, such as a mutual fund.
- Several major funds were declared insolvent recently.
- 4
A large supply of something to be drawn upon.
- He drew on his immense fund of knowledge.
- an inexhaustible fund of stories
fundverb/ˈfʌnd/
- 1
To pay or provide money for.
- He used his inheritance to fund his gambling addiction.
- 2
To place (money) in a fund.
- 3
To form a debt into a stock charged with interest.
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。