Steganography in Merrian-Webster Online

前幾天收到 Merrian-Webster Online 用 email 寄來的 Word of the Day ( November 26, 2006 ) 剛好就是介紹 steganography 這個字, 這個字之前我在 Merrian-Webster Online 是查不到的, 不過現在已經補上來了, 我們來看看 email 的介紹內容:

steganography \steg-uh-NAH-gruh-fee\ noun

: the art or practice of concealing a message, image, or file within another message, image, or file

Example sentence:
No doubt, the Internet has enriched society, but it has a flip side; terrorists, for instance, can secretly network online using steganography.

Did you know?
"Steganography" is a word that was resurrected after being in disuse for almost 150 years! It was put to rest in the early 1800s, labeled an archaic synonym of "cryptography" by dictionary makers, but was brought back to life in the 1980s as a word for a type of digital cryptography. There is nothing cryptic about the word's origin; it is based on the Greek word "steganos," meaning "covered" or "reticent."

steganography 在 Merrian-Webster Online 的連結網址是 http://www.m-w.com/dictionary/steganography
我們也來看看它是怎麼介紹的:

Main Entry: steg·a·nog·ra·phy
Pronunciation: "ste-g&-'nä-gr&-fE
Function: noun
Etymology: New Latin steganographia, from Greek steganos covered, reticent (from stegein to cover) + Latin -graphia -graphy -- more at THATCH
1 archaic : CRYPTOGRAPHY
2 : the art or practice of concealing a message, image, or file within another message, image, or file
- steg·a·no·graph·ic /-n&-'gra-fik/ adjective

相對於 cryptography 的 steganography, Merrian-Webster Online 已經有解釋了, 不過, 相對於cryptanalysis 的 steganalysis, 不曉得還要等多久, 字典的解釋才會補上來...