Answer

Dheemahi is not a specifically Jain traditional name.

It is a Sanskrit-based name/word used in broader Indian usage, and some Jain families may choose it as a modern personal name. But it is not known as a classic Jain scriptural name.

Explanation

In Jain Dharma, names are usually drawn from:

• Tirthankars
• Shravaks and Shravikas
• Virtues like Shanti, Arjun, Arya, Moksh, etc.
• Traditional Sanskrit and Prakrit names

Dheemahi does not belong to the commonly recognized list of Jain names.

Takeaway

So, if you are asking whether it is a Jain name in the traditional sense, the answer is no. If you want, I can also suggest some beautiful Jain baby names.