Here are words related to tapasvi in Jain context:

• Tapas — austerity, penance
• Tapa — austerity
• Tapasyā — penance, spiritual discipline
• Tapasvin / Tapasvī — one who practices austerity
• Vrata — vow
• Saṃyama — self-restraint
• Vairāgya — detachment
• Āraṇya-dhyāna — deep meditation in solitude
• Sādhu — monk
• Sādhvī — nun
• Muni — ascetic
• Yati — disciplined ascetic
• Munirāj — revered monk
• Anāśakti — non-attachment
• Aparigraha — non-possession
• Ātma-sādhanā — spiritual practice
• Kāyotsarga — abandonment of body-consciousness
• Pratikramaṇ — repentance and purification
• Samāyik — equanimity practice

If you want, I can also give:

• Gujarati words for tapasvi
• Sanskrit synonyms
• Words used in Jain stotras and pravachans