Answer

The exact age of the stotra commonly known as “Jainam Jayati Shasanam” is not clearly established within widely accepted Jain tradition.

Explanation

“Jainam Jayati Shasanam” means:

“May the Jain Shasan be victorious.”

It is a devotional phrase used to express reverence for the Jain Dharma and the teachings of the Tirthankars.

However, if you are asking about a specific stotra with this title, its exact date of composition, author, and historical period are not universally confirmed in traditional Jain sources.

Takeaway

Sorry, I can only provide information that is clearly established within Jain tradition.