核心畫面
Think of one small flat thing being pressed onto a bigger thing and made to stay: a label onto a box, a stamp onto an envelope, a seal onto a page. The Latin pieces inside the word say exactly that — ad- (to) plus figere (to fix), which you can still see as af- + fix. Two things follow from the picture. The piece being is minor on its own and only starts to matter once it is on something; and the joining is meant to last, not to be about and taken off again.
affix 可以想成把一小片東西按在另一樣東西上，讓它黏住不掉：標籤按在箱子上、郵票按在信封上、印章按在紙上。拉丁文…更多收起
affix 可以想成把一小片東西按在另一樣東西上，讓它黏住不掉：標籤按在箱子上、郵票按在信封上、印章按在紙上。拉丁文的組成剛好就是這個動作：ad-（朝向）加 figere（固定），也就是英文裡看得到的 af- + fix。從這個畫面會跑出兩件事。第一，被按上去的那一片自己放著沒什麼作用，貼上去才開始有意義。第二，這個動作是要它留住的，不是隨手放一下就拿走。From the word’s history
Borrowed from Latin affixus, the past participle of affigere, which is ad- (to) plus figere (to fix). By surface analysis the English word is still af- + fix.
這個字借自拉丁文 affixus，是 affigere 的過去分詞，而 affigere 由 ad-（朝向）加 figere（固定）組成。從英文表面上看，它也還是 af- + fix，動作的畫面一直沒有走遠。
Wiktionary entries for affix (packet evidence): Borrowed from Latin affixus, perfect passive participle of affigere (from ad- + figere). By surface analysis, af- + fix.