महाभारतः mahābhārataḥ - book-7, chapter-156, verse-23

त्वत्सहायो नरव्याघ्र लोकानां हितकाम्यया ।
हिडिम्बबककिर्मीरा भीमसेनेन पातिताः ।
रावणेन समप्राणा ब्रह्मयज्ञविनाशनाः ॥२३॥

23. tvatsahāyo naravyāghra lokānāṁ hitakāmyayā ,
hiḍimbabakakirmīrā bhīmasenena pātitāḥ ,
rāvaṇena samaprāṇā brahmayajñavināśanāḥ.

23. tvatsahāyaḥ naravyāghra lokānām
hitakāmyayā hiḍimbabakakirmīrāḥ
bhīmasenena pātitāḥ rāvaṇena
samaprāṇāḥ brahmayajñavināśanāḥ

23. naravyāghra [tvam] tvatsahāyaḥ,
lokānām hitakāmyayā,
rāvaṇena samaprāṇāḥ brahmayajñavināśanāḥ hiḍimbabakakirmīrāḥ bhīmasenena pātitāḥ

23. O tiger among men! With your assistance and for the welfare of the worlds, Hiḍimba, Baka, and Kirmīra—who were as formidable as Rāvaṇa and destroyers of sacred rites (yajña)—were slain by Bhīmasena.

Words meanings summery:

• त्वत्सहायः (tvatsahāyaḥ) - with your assistance (having you as an ally/helper, aided by you)

• नरव्याघ्र (naravyāghra) - O tiger among men, O best of men

• लोकानाम् (lokānām) - of the worlds, of people

• हितकाम्यया (hitakāmyayā) - with the desire for welfare, for the sake of welfare

• हिडिम्बबककिर्मीराः (hiḍimbabakakirmīrāḥ) - Hiḍimba, Baka, and Kirmīra (names of demons)

• भीमसेनेन (bhīmasenena) - by Bhīmasena

• पातिताः (pātitāḥ) - were slain (slain, cast down, killed)

• रावणेन (rāvaṇena) - by Rāvaṇa

• समप्राणाः (samaprāṇāḥ) - as formidable as Rāvaṇa (whose life-force was equal, equal in strength/life-force)

• ब्रह्मयज्ञविनाशनाः (brahmayajñavināśanāḥ) - destroyers of sacred rites (yajña) (destroyers of sacred rites (yajña), destroyers of Brahmins and sacrifices)

Words meanings and morphology

त्वत्सहायः (tvatsahāyaḥ) - with your assistance (having you as an ally/helper, aided by you)

(adjective)

Nominative, masculine, singular of tvatsahāya

tvatsahāya - having you as an ally/helper, aided by you

Bahuvrīhi compound, literally 'whose helper is you', here implying 'with your assistance'.

Compound type : bahuvrīhi (tvat+sahāya)

• tvat – you, your
  pronoun
• sahāya – helper, companion, assistant
  noun (masculine)
  Root: sah (class 1)

Note: Functions as an epithet in vocative sense here, referring to the assistance provided by the addressee.

नरव्याघ्र (naravyāghra) - O tiger among men, O best of men

(noun)

Vocative, masculine, singular of naravyāghra

naravyāghra - tiger among men, best of men, excellent man

Compound of nara (man) and vyāghra (tiger)

Compound type : tatpuruṣa (nara+vyāghra)

• nara – man, human being
  noun (masculine)
  Root: nṛ
• vyāghra – tiger
  noun (masculine)

लोकानाम् (lokānām) - of the worlds, of people

(noun)

Genitive, masculine, plural of loka

loka - world, people, region

Root: lok (class 1)

हितकाम्यया (hitakāmyayā) - with the desire for welfare, for the sake of welfare

(noun)

Instrumental, feminine, singular of hitakāmyā

hitakāmyā - desire for welfare, wish for good

Derived from hita (welfare) + kāmyā (desire)

Compound type : tatpuruṣa (hita+kāmyā)

• hita – welfare, benefit, good
  noun (neuter)
  Past Passive Participle of dhā-
  Root: dhā (class 3)
• kāmyā – desire, wish
  noun (feminine)
  Root: kam (class 1)

हिडिम्बबककिर्मीराः (hiḍimbabakakirmīrāḥ) - Hiḍimba, Baka, and Kirmīra (names of demons)

(proper noun)

Nominative, masculine, plural of hiḍimbabakakirmīra

hiḍimbabakakirmīra - Hiḍimba, Baka, and Kirmīra (a group of demons)

Dvandva compound of proper nouns

Compound type : dvandva (hiḍimba+baka+kirmīra)

• hiḍimba – Hiḍimba (a demon)
  proper noun (masculine)
• baka – Baka (a demon)
  proper noun (masculine)
• kirmīra – Kirmīra (a demon)
  proper noun (masculine)

भीमसेनेन (bhīmasenena) - by Bhīmasena

(proper noun)

Instrumental, masculine, singular of bhīmasena

bhīmasena - Bhīmasena (name of a Pāṇḍava brother)

Compound of bhīma (terrible) and senā (army, but here likely a name element)

Compound type : tatpuruṣa (bhīma+senā)

• bhīma – terrible, formidable
  adjective (masculine)
  Root: bhī (class 3)
• senā – army, host
  noun (feminine)

पातिताः (pātitāḥ) - were slain (slain, cast down, killed)

(participle)

Nominative, masculine, plural of pātita

pātita - slain, felled, caused to fall, killed

Causative Past Passive Participle

Derived from causative of pat- (to fall)

Root: pat (class 1)

रावणेन (rāvaṇena) - by Rāvaṇa

(proper noun)

Instrumental, masculine, singular of rāvaṇa

rāvaṇa - Rāvaṇa (name of the demon king of Laṅkā)

Root: ru (class 2)

समप्राणाः (samaprāṇāḥ) - as formidable as Rāvaṇa (whose life-force was equal, equal in strength/life-force)

(adjective)

Nominative, masculine, plural of samaprāṇa

samaprāṇa - having equal life-force, equal in strength, equally vital

Compound of sama (equal) and prāṇa (life, breath)

Compound type : bahuvrīhi (sama+prāṇa)

• sama – equal, same, similar
  adjective
• prāṇa – life, breath, vital air
  noun (masculine)
  Root: pra

ब्रह्मयज्ञविनाशनाः (brahmayajñavināśanāḥ) - destroyers of sacred rites (yajña) (destroyers of sacred rites (yajña), destroyers of Brahmins and sacrifices)

(adjective)

Nominative, masculine, plural of brahmayajñavināśana

brahmayajñavināśana - destroyer of sacred rites, destroyer of Brahmins and sacrifices

Compound of brahma (Veda/Brahmin) + yajña (sacrifice) + vināśana (destroyer)

Compound type : tatpuruṣa (brahma+yajña+vināśana)

• brahma – Veda, sacred knowledge, Brahmin
  noun (neuter)
  Root: bṛh (class 1)
• yajña – sacrifice, sacred rite
  noun (masculine)
  Root: yaj (class 1)
• vināśana – destroyer, causing destruction
  noun (masculine)
  Agent noun from vi-naś-
  Prefix: vi
  Root: naś (class 4)