let Ks = Gz = Ksh = Z = silence
X = the unknown. René Descartes (1596-1650) popularized the use of "X" as a variable in his mathematical equations (like x + 7 = 12), as the thing that is not yet known and needs to be resolved.
The X (or cross) symbol is one of the oldest abstract shapes depicted by human beings, as found on the Blombos Cave walls in South Africa, dated to about 73,000 years ago.
The Greeks, influenced by the Phoenician alphabet, were the first to use X as an actual letter, (around 900 BC), and called it “Chi” (pronounced by them as Kh, as in Bach). The Etruscans eventually adopted the letter, and passed it on to the Romans (who changed the sound to Ks, as in Box,) who passed it on to the Californians, (who changed the sound to Kash, as in Ch-ching! — X-rated, X-box, X-files, X-men, Lil Nas X, X (Twitter), X-planes, xtc).
The letter X has various pronunciations in contemporary English, such as in: exit (ks sound), xenophobia (z), luxurious (ksh), exam (gz), as well as being completely silent in loan-words, like in faux fur. (Combining all of those, Elon Musk’s future grandson’s likely inexorable name, “XXXX-13”, would sound as if vocalized by a jazz beat-boxer: Ks(silence)Gz-Ksh-Thirteen!).
The letter X has various negative symbolic meanings and uses, like the crossbones on a pirate flag, or the crosshairs of a sniper’s scope. A cross — tee or ex orientation — for a thousand years to the persecuted meant torture, pain, and death by crucifixion. Especially if you happened to be politically-incorrect in 519 BCE and living in Babylon when it was expropriated by Darius the First, who holds the world record for the execrable activity. (Those same Babylonians, in their ancient texts, describe a celestial body or “crossing point” called Nibiru which periodically enters our solar system and wreaks havoc, causing pole shifts and mass extinctions on Earth. That rogue planet-of-doom is today colloquially called “Planet X”).
You could extinct just yourself from Earth by willfully ignoring any XX labeling on liquid product packaging, because it means poison — so however daring, don’t use it as the 6th ingredient in your Xanadu cocktail. Two Xes replacing the pupils of a cartoon character mean he’s stunned or dead, and the triple-Xes written on a jug of moonshine mean 180 proof and you might end up just like that cartoon character if you drink from it…. CONT’D*
*SEE THE REST OF THE “X” IMAGES/TEXT AT THE K.I.A. SUBSTACK: HERE (and subscribe!)