महाभारतः mahābhārataḥ - book-3, chapter-145, verse-29

फलमूलाशनैर्दान्तैश्चीरकृष्णाजिनाम्बरैः ।
सूर्यवैश्वानरसमैस्तपसा भावितात्मभिः ॥२९॥

29. phalamūlāśanairdāntaiścīrakṛṣṇājināmbaraiḥ ,
sūryavaiśvānarasamaistapasā bhāvitātmabhiḥ.

29. phalmūlāśanaiḥ dāntaiḥ cīrakṛṣṇājināmbaraiḥ
sūryavaiśvānarāsamaiḥ tapasā bhāvitātmabhiḥ

29. By those who subsist on fruits and roots, who are disciplined, who wear garments of bark and black deerskin, who are brilliant like the sun and the sacrificial fire (vaiśvānara), and whose inner selves (ātman) are purified by their severe austerity (tapas).

Words meanings summery:

• फल्मूलाशनैः (phalmūlāśanaiḥ) - by those who eat fruits and roots

• दान्तैः (dāntaiḥ) - by the self-controlled, by the disciplined

• चीरकृष्णाजिनाम्बरैः (cīrakṛṣṇājināmbaraiḥ) - by those wearing bark and black deerskin

• सूर्यवैश्वानरासमैः (sūryavaiśvānarāsamaiḥ) - by those who are equal to the sun and the universal fire

• तपसा (tapasā) - by austerity, by penance

• भावितात्मभिः (bhāvitātmabhiḥ) - by those whose selves have been purified/cultivated

Words meanings and morphology

फल्मूलाशनैः (phalmūlāśanaiḥ) - by those who eat fruits and roots

(noun)

Instrumental, masculine, plural of phalamūlāśanin

phalamūlāśanin - one who subsists on fruits and roots

Compound type : Tatpurusha (phala+mūla+aśanin)

• phala – fruit
  noun (neuter)
• mūla – root
  noun (neuter)
• aśanin – eater, one who eats
  noun (masculine)
  Agent Noun
  Derived from root √aś (to eat).
  Root: aś (class 9)

दान्तैः (dāntaiḥ) - by the self-controlled, by the disciplined

(adjective)

Instrumental, masculine, plural of dānta

dānta - controlled, subdued, self-restrained, disciplined

Past Passive Participle

From root √dam (to subdue, control).

Root: dam (class 4)

Note: Used substantively as a noun.

चीरकृष्णाजिनाम्बरैः (cīrakṛṣṇājināmbaraiḥ) - by those wearing bark and black deerskin

(adjective)

Instrumental, masculine, plural of cīrakṛṣṇājināmbara

cīrakṛṣṇājināmbara - one whose garment is bark and black deerskin

Compound type : Bahuvrihi (cīra+kṛṣṇājina+ambara)

• cīra – bark garment, strip of bark, rag
  noun (neuter)
• kṛṣṇājina – black deerskin
  noun (neuter)
• ambara – garment, cloth
  noun (neuter)

Note: Used substantively as a noun.

सूर्यवैश्वानरासमैः (sūryavaiśvānarāsamaiḥ) - by those who are equal to the sun and the universal fire

(adjective)

Instrumental, masculine, plural of sūryavaiśvānarasama

sūryavaiśvānarasama - equal to the sun and Vaiśvānara (the universal fire, or Agni)

Compound type : Tatpurusha (sūrya+vaiśvānara+sama)

• sūrya – sun, sun god
  noun (masculine)
• vaiśvānara – belonging to all men, universal; fire (often personified as a god)
  noun (masculine)
• sama – equal, similar, same
  adjective (masculine)

Note: Used substantively as a noun.

तपसा (tapasā) - by austerity, by penance

(noun)

Instrumental, neuter, singular of tapas

tapas - austerity, penance, heat, spiritual fervor (tapas)

Root: tap (class 1)

भावितात्मभिः (bhāvitātmabhiḥ) - by those whose selves have been purified/cultivated

(adjective)

Instrumental, masculine, plural of bhāvitātman

bhāvitātman - one whose self (ātman) is cultivated, purified, refined

Compound type : Bahuvrihi (bhāvita+ātman)

• bhāvita – cultivated, purified, refined, produced
  adjective (masculine)
  Past Passive Participle
  From root √bhū (to be) with causative suffix -i + kta.
  Root: bhū (class 1)
• ātman – self, soul, spirit, the individual soul, the Supreme Soul (ātman)
  noun (masculine)
  Root: an (class 2)

Note: Used substantively as a noun.