महाभारतः mahābhārataḥ - book-14, chapter-11, verse-19

ततो वृत्रं शरीरस्थं जघान भरतर्षभ ।
शतक्रतुरदृश्येन वज्रेणेतीह नः श्रुतम् ॥१९॥

19. tato vṛtraṁ śarīrasthaṁ jaghāna bharatarṣabha ,
śatakraturadṛśyena vajreṇetīha naḥ śrutam.

19. tataḥ vṛtram śarīrastham jaghāna bharatarṣabha
śatakratuḥ adṛśyena vajreṇa iti iha naḥ śrutam

19. bharatarṣabha tataḥ śatakratuḥ śarīrastham vṛtram
adṛśyena vajreṇa jaghāna iti iha naḥ śrutam

19. O best of Bharatas, it is heard by us here that Indra (śatakratu) then killed Vṛtra, who was dwelling in his body, with an invisible thunderbolt.

Words meanings summery:

• ततः (tataḥ) - then, thereafter, from that

• वृत्रम् (vṛtram) - Vṛtra (a demon)

• शरीरस्थम् (śarīrastham) - residing in Vṛtra's body (residing in the body, embodied, corporeal)

• जघान (jaghāna) - killed, struck, slew

• भरतर्षभ (bharatarṣabha) - O best of Bharatas

• शतक्रतुः (śatakratuḥ) - Indra (literally 'he of a hundred powers' or 'he of a hundred Vedic rituals')

• अदृश्येन (adṛśyena) - by the invisible, by that which cannot be seen

• वज्रेण (vajreṇa) - by the thunderbolt, by the diamond

• इति (iti) - marks direct speech or thought, or a conclusion (thus, so, in this manner)

• इह (iha) - here, in this (context)

• नः (naḥ) - of us, to us, by us

• श्रुतम् (śrutam) - heard, listened, known (by tradition)

Words meanings and morphology

ततः (tataḥ) - then, thereafter, from that

(indeclinable)

वृत्रम् (vṛtram) - Vṛtra (a demon)

(proper noun)

Accusative, masculine, singular of vṛtra

vṛtra - Vṛtra (name of a demon slain by Indra)

शरीरस्थम् (śarīrastham) - residing in Vṛtra's body (residing in the body, embodied, corporeal)

(adjective)

Accusative, masculine, singular of śarīrastha

śarīrastha - being in the body, embodied, corporeal

Compound type : tatpuruṣa (śarīra+stha)

• śarīra – body, corporeal form
  noun (neuter)
• stha – standing, staying, situated in
  adjective (masculine)
  From root 'sthā' (to stand)
  Root: sthā (class 1)

जघान (jaghāna) - killed, struck, slew

(verb)

3rd person , singular, active, perfect (lit) of han

Perfect tense (lit), 3rd person singular

Root: han (class 2)

भरतर्षभ (bharatarṣabha) - O best of Bharatas

(compound noun)

Compound type : tatpuruṣa (bharata+ṛṣabha)

• bharata – a descendant of Bharata, an ancient king; name of a dynasty
  proper noun (masculine)
• ṛṣabha – bull; best, chief, excellent (often used as a suffix in compounds)
  noun (masculine)

शतक्रतुः (śatakratuḥ) - Indra (literally 'he of a hundred powers' or 'he of a hundred Vedic rituals')

(proper noun)

Nominative, masculine, singular of śatakratu

śatakratu - Indra (epithet, 'having a hundred powers' or 'having performed a hundred Vedic rituals')

Compound type : bahuvrīhi (śata+kratu)

• śata – a hundred
  numeral (neuter)
• kratu – power, strength; will, purpose; Vedic ritual, sacrifice
  noun (masculine)

अदृश्येन (adṛśyena) - by the invisible, by that which cannot be seen

(adjective)

Instrumental, neuter, singular of adṛśya

adṛśya - invisible, imperceptible; unseen, not visible

Gerundive/Future Passive Participle

Negated form of dṛśya (visible), from root dṛś (to see)

Prefix: a

Root: dṛś (class 1)

Note: Agrees with 'vajreṇa'

वज्रेण (vajreṇa) - by the thunderbolt, by the diamond

(noun)

Instrumental, masculine, singular of vajra

vajra - thunderbolt (Indra's weapon), diamond

इति (iti) - marks direct speech or thought, or a conclusion (thus, so, in this manner)

(indeclinable)

इह (iha) - here, in this (context)

(indeclinable)

नः (naḥ) - of us, to us, by us

(pronoun)

Genitive, plural of asmad

asmad - I, we (first person pronoun)

Note: Can be dative or genitive; here it implies 'by us' in passive construction.

श्रुतम् (śrutam) - heard, listened, known (by tradition)

(adjective)

Nominative, neuter, singular of śruta

śruta - heard, listened to, learnt; sacred knowledge (Veda)

Past Passive Participle

From root śru (to hear)

Root: śru (class 5)