Autocorrect is almost as old as personal computers. Even some of the earliest word processors had a spellcheck feature that suggested alternative words if a word you typed did not appear in its internal dictionary. Certainly, today, autocorrect has come a long way since the Cupertino effect. What’s the Cupertino effect? Well, in its early days, word processors would replace the word “cooperation” with “Cupertino” (the city in Northern California where Apple and other computer companies are headquartered). This spelling suggestion made its way to many documents published by the United Nations, NATO, and other official bodies, so the Cupertino effect is any inappropriate suggestion or autocorrection made by a spellchecker.

In the beginning autocorrect was primarily a smart spellchecker. If you typed “bfeore,” it replaced it with “before.” Then in 2007, Microsoft introduced the “contextual speller” (also known as Grammar Checker) for Office, and squiggly green lines began appearing in our Word Docs. Those green lines signified a problem between words not with just one word. So, if the verb of your sentence was not correctly conjugated for the subject, it would suggest a replacement. As in, “I leaves the office at 5” would be corrected to say “I leave the office at 5.” It could also correct words that were next to each other. For example, if you typed “shew ent,” it replaced it with “she went.”

How do you technically describe what autocorrect does?
Metathesis is the changing of one letter or sound for another letter or sound.
Anatypsis is the insertion of a vowel in the middle of a word, more broadly called epenthesis.
A paragoge is an addition of a sound at the end of a word, rather than the middle.
So if you make an embarrassing autocorrect error, maybe using these terms to describe what happened will help you save face.

DOES AUTOCORRECT HURT OR HELP YOU MORE? [

For me, it helps more...