The abbreviation was once first documented in 1939, in an army context.
It’s been in use in different wars, and later was once counseled through civilians as smartly.
The provision of web generation to the lots had enabled “eta” to be used online in the 90’s, and in texts, all through the 2000’s.
Following the arrival of the new millennium, GPS generation was one thing of not unusual nature, which makes use of the expression each day.
“Eta” was once outlined on City Dictionary as early as 2003.
As of late we would possibly come upon it in textual content messages, posts on social media websites in addition to video video games, to say the least.