The spelling of the word "gat away" can be explained through its phonetic transcription. The first sound, /ɡ/, represents the voiced velar stop sound, followed by the /æ/ sound which is the short vowel 'a' sound. The third sound, /t/, represents the unvoiced alveolar stop sound. Lastly, the second word "away" has the phonetic transcription /əˈweɪ/ which represents the schwa sound, a slight 'uh' sound, followed by the 'w' sound and ending with the long vowel 'a' sound. Together, the word "gat away" means to escape or leave quickly.
The phrase gat away does not have a distinct etymology as it is not a commonly used phrase in English. However, if you are referring to the term get away, it means to escape or leave a particular place.
The etymology of get away can be traced back to Old Norse, specifically the word geta meaning to obtain or to get. In Middle English, it evolved to get with various meanings, including to obtain, to reach, or to acquire. Over time, the phrase get away came to mean to escape or to leave.