Sack, Sackcloth or Knapsack? A lesson in Hebrew and Mail Delivery

In 1996, a friend introduced me to a book that researched and attempted to prove that the etymological root of many words in English is from Hebrew. I don't recall most of them, but my absolute favourite was – Abracadabra! Which, according to the author, meant "I will create" EVRA "with my words" K'DA'BER. Occasionally, I come up with my own ideas (or maybe these words were in the book - not at all sure...) like my thought/theory that: "don't eat the meat NA (raw/fresh)" (Exodus 12:9) – is the source for the word 'now' in English; also the word 'nose' is from the Hebrew NEZEM (Proverbs 11:22 "nose-ring"). I believe that the Ten times the word "sack" is mentioned in the last few chapters of Genesis (42:25-44:12) is from the Hebrew language, and spelled the same way: SAK. Sackcloth is mentioned many times in the Bible, in the context of blemishes (like on cloth, wool or leather Leviticus 13:47-59), bu...