Answer
This is an official answer by QuranicNames.com Staff
Absh is an Arabic and Farsi word that means mobilization, gathering, when an army becomes mobilized and ready to fight. That's the only word close to Abish that I can find.
Abish is also a Christian (Mormon) female name mentioned in the Book of Mormon. It is also seemingly Hindu name. It may also have a meaning in Urdu. I couldn't find any trustworthy information on its meaning. If the meaning is good you can use it.