Picture ink dropped on white cloth. It does not sit on the surface; it works down into the threads. By the time you go back with water, it has become part of the cloth. Indelible names that state — someone tried to take it away and could not. The same picture carries a day you cannot stop remembering: it has soaked in.
From the word’s history
From Latin indelebilis, meaning indestructible. Broken into parts it is in- (not) plus the root that also sits behind delete, so the word says, quite literally, cannot be deleted.
來自拉丁文 indēlēbilis，意思是「毀不掉的」。拆開看是 in-（不）加上跟 delete（刪除）同一條線的字根。可以想成這個字本身就寫著「刪不掉」。
Wiktionary etymology supplied in this evidence packet (source_ref kaikki:3f6f69a190036ae4:598557750): From Latin indelebilis (indestructible). By surface analysis, in- + delible.
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