महाभारतः mahābhārataḥ - book-13, chapter-40, verse-45

अथ वा पौरुषेणेयमशक्या रक्षितुं मया ।
बहुरूपो हि भगवाञ्छ्रूयते हरिवाहनः ॥४५॥

45. atha vā pauruṣeṇeyamaśakyā rakṣituṁ mayā ,
bahurūpo hi bhagavāñchrūyate harivāhanaḥ.

45. atha vā pauruṣeṇa iyam aśakyā rakṣitum mayā
bahurūpaḥ hi bhagavān śrūyate harivāhanaḥ

45. Otherwise, this (woman) cannot be protected by me through human effort. For the glorious (bhagavān) Indra, whose vehicle is horses, is indeed known to assume many forms.

Words meanings summery:

• अथ (atha) - now, then, moreover, thus, or

• वा (vā) - or, either

• पौरुषेण (pauruṣeṇa) - by human effort, by manhood, by strength

• इयम् (iyam) - this (woman, the guru's wife) (this (feminine))

• अशक्या (aśakyā) - impossible, not able to be done

• रक्षितुम् (rakṣitum) - to protect, to guard

• मया (mayā) - by me

• बहुरूपः (bahurūpaḥ) - multiform, having many forms

• हि (hi) - indeed, for, because

• भगवान् (bhagavān) - the divine lord (Indra) (divine, glorious, blessed, reverend)

• श्रूयते (śrūyate) - is heard, is known, it is said

• हरिवाहनः (harivāhanaḥ) - Indra, the god whose vehicle is the horse (one whose vehicle is horses)

Words meanings and morphology

अथ (atha) - now, then, moreover, thus, or

(indeclinable)

Particle introducing a new topic or alternative.

वा (vā) - or, either

(indeclinable)

Conjunction.

पौरुषेण (pauruṣeṇa) - by human effort, by manhood, by strength

(noun)

Instrumental, neuter, singular of pauruṣa

pauruṣa - human, masculine, manly, human effort, strength

From puruṣa (man, person) + aṇ suffix.

Note: Indicates means.

इयम् (iyam) - this (woman, the guru's wife) (this (feminine))

(pronoun)

Nominative, feminine, singular of idam

idam - this, she, it

Demonstrative pronoun.

Note: Subject.

अशक्या (aśakyā) - impossible, not able to be done

(adjective)

Nominative, feminine, singular of aśakya

aśakya - impossible, unable to be done, not capable

Gerundive

From a- (negation) + śakya (possible).

Root: śak (class 5)

Note: Agrees with 'iyam'.

रक्षितुम् (rakṣitum) - to protect, to guard

(infinitive)

Note: Infinitive of purpose.

मया (mayā) - by me

(pronoun)

Instrumental, singular of aham

aham - I

First person singular pronoun.

Note: Agent in passive construction.

बहुरूपः (bahurūpaḥ) - multiform, having many forms

(adjective)

Nominative, masculine, singular of bahurūpa

bahurūpa - multiform, having many shapes

Compound adjective.

Compound type : bahuvrihi (bahu+rūpa)

• bahu – many, much
  adjective (masculine/feminine/neuter)
• rūpa – form, shape, appearance
  noun (neuter)

Note: Refers to Indra.

हि (hi) - indeed, for, because

(indeclinable)

Note: Causal or emphatic particle.

भगवान् (bhagavān) - the divine lord (Indra) (divine, glorious, blessed, reverend)

(adjective)

Nominative, masculine, singular of bhagavat

bhagavat - divine, blessed, glorious, adorable; title of deities or revered persons

Possessive adjective from bhaga (fortune, excellence) + -vat.

श्रूयते (śrūyate) - is heard, is known, it is said

(verb)

3rd person , singular, passive, present (laṭ) of śru

Present tense, passive voice

Formed with ya- infix and middle ending.

Root: śru (class 5)

हरिवाहनः (harivāhanaḥ) - Indra, the god whose vehicle is the horse (one whose vehicle is horses)

(proper noun)

Nominative, masculine, singular of harivāhana

harivāhana - having horses as a vehicle; a name of Indra

Compound noun.

Compound type : bahuvrihi (hari+vāhana)

• hari – horse, brown, tawny; a name of Viṣṇu/Kṛṣṇa
  noun (masculine)
• vāhana – vehicle, carrier, steed
  noun (neuter)
  From root vah (to carry) + ana.
  Root: vah (class 1)

Note: Appositive to 'bhagavān'.