महाभारतः mahābhārataḥ - book-12, chapter-262, verse-16

तेषामदीनसत्त्वानां दुश्चराचारकर्मणाम् ।
स्वकर्मभिः संवृतानां तपो घोरत्वमागतम् ॥१६॥

16. teṣāmadīnasattvānāṁ duścarācārakarmaṇām ,
svakarmabhiḥ saṁvṛtānāṁ tapo ghoratvamāgatam.

16. teṣām adīnasattvānām duścarācārakarmaṇām
svakarmabhiḥ saṃvṛtānām tapaḥ ghoratvam āgatam

16. teṣām adīnasattvānām duścarācārakarmaṇām
svakarmabhiḥ saṃvṛtānām tapaḥ ghoratvam āgatam

16. For them, who possessed an undaunted spirit (sattva), whose conduct and actions (karma) were extremely difficult to practice, and who were thoroughly engaged in their own duties (karma), their spiritual austerity (tapas) attained a formidable intensity.

Words meanings summery:

• तेषाम् (teṣām) - of them, their

• अदीनसत्त्वानाम् (adīnasattvānām) - of those with unfailing/undaunted spirit (sattva)

• दुश्चराचारकर्मणाम् (duścarācārakarmaṇām) - of those whose conduct and actions are difficult to practice/emulate

• स्वकर्मभिः (svakarmabhiḥ) - by their own actions/duties

• संवृतानाम् (saṁvṛtānām) - of those who were covered, enveloped, engaged, absorbed

• तपः (tapaḥ) - austerity, penance, spiritual practice

• घोरत्वम् (ghoratvam) - terribleness, severity, formidable nature

• आगतम् (āgatam) - attained, reached, became

Words meanings and morphology

तेषाम् (teṣām) - of them, their

(pronoun)

Genitive, masculine, plural of tad

tad - that, he, she, it

अदीनसत्त्वानाम् (adīnasattvānām) - of those with unfailing/undaunted spirit (sattva)

(adjective)

Genitive, masculine, plural of adīnasattva

adīnasattva - having an undepressed, undaunted, or unwearied spirit

Compound type : bahuvrīhi (a+dīna+sattva)

• a – not, un-
  indeclinable
• dīna – depressed, poor, wretched, low, dejected
  adjective (masculine)
  Past Passive Participle
  Root: dī (class 4)
• sattva – being, existence, spirit, essence, courage, true nature
  noun (neuter)

दुश्चराचारकर्मणाम् (duścarācārakarmaṇām) - of those whose conduct and actions are difficult to practice/emulate

(adjective)

Genitive, masculine, plural of duścarācārakarman

duścarācārakarman - whose conduct and actions are difficult to perform

Compound type : bahuvrīhi (dus+cara+ācāra+karman)

• dus – difficult, bad, ill
  indeclinable
  Prefix: dus
• cara – moving, going, performing (as suffix); practice
  adjective (masculine)
  Root: car (class 1)
• ācāra – conduct, custom, practice, behavior
  noun (masculine)
  Prefix: ā
  Root: car (class 1)
• karman – action, deed, duty
  noun (neuter)
  Root: kṛ (class 8)

स्वकर्मभिः (svakarmabhiḥ) - by their own actions/duties

(noun)

Instrumental, neuter, plural of svakarma

svakarma - one's own duty, one's proper action

Compound type : karmadhāraya (sva+karman)

• sva – own, one's own
  pronoun (neuter)
• karman – action, deed, duty
  noun (neuter)
  Root: kṛ (class 8)

संवृतानाम् (saṁvṛtānām) - of those who were covered, enveloped, engaged, absorbed

(adjective)

Genitive, masculine, plural of saṃvṛta

saṁvṛta - covered, enveloped, engaged in, protected

Past Passive Participle

Prefix: sam

Root: vṛ (class 5)

तपः (tapaḥ) - austerity, penance, spiritual practice

(noun)

Nominative, neuter, singular of tapas

tapas - heat, warmth, austerity, penance, spiritual discipline

Root: tap (class 1)

घोरत्वम् (ghoratvam) - terribleness, severity, formidable nature

(noun)

Accusative, neuter, singular of ghoratva

ghoratva - terribleness, dreadfulness, severity

Derived from the adjective 'ghora' (terrible, formidable) with the suffix -tva, forming an abstract noun.

आगतम् (āgatam) - attained, reached, became

(adjective)

Nominative, neuter, singular of āgata

āgata - come, arrived, attained, reached

Past Passive Participle

Prefix: ā

Root: gam (class 1)