看得見的白：顏色與潔淨
最貼近花瓣的那一層，講的是真實的顏色和表面。
adjective · B2
Completely white, with no mark, spot or shade of any other colour in it — as white as the petal of a lily.
純白的
核心畫面
You can start from one of a lily: white all over, with nothing else on it at all. What makes that image useful is not the colour but the absence — one would show immediately, so a surface like that is proof that nothing has landed on it. Every use of this word is a claim that something is clear in that way: a piece of cloth, a person's record, or the make-up of a group.
可以先想一片百合花瓣：整片都是白的，上面什麼都沒有。真正有用的不是那個顏色，而是那份「空無一物」。因為一粒灰塵掉上去…更多收起
可以先想一片百合花瓣：整片都是白的，上面什麼都沒有。真正有用的不是那個顏色，而是那份「空無一物」。因為一粒灰塵掉上去就會被看見，所以這樣一面白，本身就是「什麼都沒沾到」的證明。這個字的每個用法，都是在主張某個東西乾淨到這種程度：一塊布、一個人的紀錄，或是一群人的組成。From the word’s history
The evidence packet gives lily-white as Middle English liliwhite, that is lily plus white. The flower is in the word from the start, which is why the word has always said more than the colour alone.
供給的資料寫明：lily-white 來自中古英語的 liliwhite，就是 lily（百合）加 white（白）。百合從一開始就在這個字裡面，所以它講的從來不只是顏色，還有那份乾淨到沒有雜質的樣子。
Wiktionary entry supplied in the evidence packet (source_ref kaikki:3f6f69a190036ae4:1199801692:4193)
Two branches
看不見的白：紀錄與成員
把「表面上找不到任何雜點」搬到抽象的東西上。這是意義上的連結，不是歷史演變的說明。
adjective · B2
Having done nothing wrong at all, with nothing bad or dishonest in your record — often said in a doubting way, to someone who is acting more innocent than they are.
清白的；毫無污點的