This word contains 一 "one" plus 切 "to cut" .. so how would this mean all/entire? ... I searched before coming here and found something https://kanjiportraits.wordpress.com/2016/10/23/the-kanji-刀切窃初分雰紛契喫潔-刀-sword-knife-to-cut/ .. they explained that as " When there is nothing left as if it were a cut off, it meant “all.” ".. So is this explaination right? (I mean the explaintion in the site for why this kanji means "all") and if not then what the right explaination for why kanji 切 means "all"