Here are some simple, unique, Jain-friendly baby boy names starting with K and J, with meanings:

Starting with K

1. Keval / Kaival – pure, absolute; from Keval-jnan (omniscience, state of the siddha).
2. Kalyan – welfare, auspicious good, spiritual uplift.
3. Ksham / Kshamendra – forgiveness, one who embodies kshama.
4. Karun / Karunesh – compassion, lord of compassion.
5. Kirtin / Kirti – good fame earned through dharma.
6. Kushal – skillful, auspicious, spiritually wise.
7. Kunthunath – name of the 17th Tirthankar Kunthunatha.
8. Kundakund / Kundan – after Acharya Kundakund; also “pure gold-like”.
9. Kumarpal – name of a famous Jain king and devotee.
10. Ketan – banner, one who upholds a noble standard.

You can also make modern-sounding combinations like:

• Keval-Kirt (pure glory)
• Karun-Kushal (compassionate and capable)

More K-names are given here

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Starting with J

1. Jin / Jina – spiritual conqueror who has won over inner passions.
2. Jinal – related to Jina; one who follows the Jina.
3. Jinendra / Jinesh / Jinaesh – lord of the Jinas; spiritually victorious.
4. Jitendra / Jitendriya – one who has conquered the senses.
5. Jitkumar – victorious boy, especially over inner enemies like anger, pride.
6. Jayesh / Jitesh – lord of victory (dharmic victory).
7. Jagrut / Jagrav – awakened, spiritually alert.
8. Jigyasu – spiritual seeker, one who wants true knowledge.
9. Jineshwar – great lord who follows Jina-dharma.
10. Jitansh – a part of victory; child of spiritual success.

All these are acceptable across both Digambar and Shwetambar traditions; only pronunciation or spelling may vary, the meanings stay the same.

If you share whether you prefer more “virtue” names (like forgiveness, non‑violence, peace) or “Tirthankar-based” names, I can refine this list further.