From the word’s history
From the adverb far off.
由副詞片語 far off（遠遠地）變成的詞。
Picture yourself standing still and looking out. Something is so far out there that it has lost its detail: a coastline is just a line, an island is just a shape. You can see it, but you cannot reach it from where you stand. Far-off can be thought of as that view, and English lets you point it at a place or at a time.
可以想成你站著不動，往遠處看。有個東西遠到細節都不見了：海岸只剩一條線，島只剩一個形狀。看得到，但從你站的地方過不去。far-off 可以想成這個畫面。英文會把這個看法用在地方上，也用在日子上。
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