The letter X is one of the simplest, yet most enigmatic letters in use today. We’re not even sure how to pronounce it sometimes. The story of its origins is fuzzy.
Just look at the word for the name brand “Xerox.” One word, two very distinct pronunciations for x.
In Mexican Spanish, x has a place in the evolution of the language. It has generally replaced j in such words as “México” vs. “Méjico,” “Texas” vs. “Tejas,” and “Oaxaca” vs. “Oajaca.”