This is what I found when I did a search for the origin of the
word "Allah" on the internet:
"...the word 'ALLAH' itself is Sanskrit. In Sanskrit language
Allah, Akka and Amba are synonyms. They signify a goddess or
mother. The term 'ALLAH' forms part of Sanskrit chants invoking
goddess Durga, also known asBhavani, Chandi and Mahishasurmardini.
The Islamic word for God is., therefore, not an innovation but the
ancient Sanskrit appellation retained and continued by Islam. Allah
means mother or goddess and mother goddess.The King Vikramaditya
inscription was found on a gold dish hung inside the Kaaba shrine
in Mecca, proving beyond doubt that the Arabian Peninsula formed a
part of his Indian Empire. (Ref: page 315 of a volume known as
'Sayar-ul-Okul' treasured in the Makhtab-e-Sultania library in
Istanbul, Turkey). "