वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-1, chapter-66, verse-18

तस्य शब्दो महानासीन्निर्घातसमनिस्वनः ।
भूमिकम्पश्च सुमहान्पर्वतस्येव दीर्यतः ॥१८॥

18. tasya śabdo mahānāsīnnirghātasamanisvanaḥ ,
bhūmikampaśca sumahānparvatasyeva dīryataḥ.

18. tasya śabdaḥ mahān āsīt nirghātasamanisvanaḥ
bhūmikampaḥ ca sumahān parvatasya iva dīryataḥ

18. The sound it made was immense, like the crash of a thunderbolt, and there was also a very great earthquake, as if a mountain were splitting apart.

Words meanings summery:

• तस्य (tasya) - of that; of him; its; his

• शब्दः (śabdaḥ) - sound; noise; word

• महान् (mahān) - great; large; mighty; immense

• आसीत् (āsīt) - was; existed

• निर्घातसमनिस्वनः (nirghātasamanisvanaḥ) - having a sound like a thunderbolt crash; like the crash of a thunderbolt

• भूमिकम्पः (bhūmikampaḥ) - earthquake; trembling of the earth

• च (ca) - and; also

• सुमहान् (sumahān) - very great; very large; immense

• पर्वतस्य (parvatasya) - of a mountain

• इव (iva) - like; as if; as it were

• दीर्यतः (dīryataḥ) - of splitting; being torn apart; of bursting (genitive singular masculine present participle)

Words meanings and morphology

तस्य (tasya) - of that; of him; its; his

(pronoun)

Genitive, singular of tad

tad - that; he; she; it

Note: Refers to the source of the sound, likely a bow.

शब्दः (śabdaḥ) - sound; noise; word

(noun)

Nominative, masculine, singular of śabda

śabda - sound; noise; word; voice

Root: śabd (class 1)

Note: Subject of the sentence.

महान् (mahān) - great; large; mighty; immense

(adjective)

Nominative, masculine, singular of mahat

mahat - great; large; mighty; important

Note: Qualifies 'śabdaḥ'.

आसीत् (āsīt) - was; existed

(verb)

3rd person , singular, active, past imperfect (laṅ) of as

Past imperfect

Root 'as', 3rd person singular, imperfect active.

Root: as (class 2)

निर्घातसमनिस्वनः (nirghātasamanisvanaḥ) - having a sound like a thunderbolt crash; like the crash of a thunderbolt

(adjective)

Nominative, masculine, singular of nirghātasamanisvana

nirghātasamanisvana - having a sound like a thunderbolt crash

Compound type : Bahuvrihi (nirghāta+sama+nisvana)

• nirghāta – thunderbolt; crash; shock
  noun (masculine)
  Prefix: nir
  Root: han (class 2)
• sama – like; equal; similar
  adjective (masculine)
• nisvana – sound; noise; cry
  noun (masculine)
  Derived from root 'svan' (to sound).
  Prefix: ni
  Root: svan (class 1)

Note: Qualifies 'śabdaḥ'.

भूमिकम्पः (bhūmikampaḥ) - earthquake; trembling of the earth

(noun)

Nominative, masculine, singular of bhūmikampa

bhūmikampa - earthquake; trembling of the earth

Compound type : Tatpurusha (bhūmi+kampa)

• bhūmi – earth; ground; land
  noun (feminine)
• kampa – trembling; shaking; movement
  noun (masculine)
  From root 'kamp' (to tremble).
  Root: kamp (class 1)

Note: Another subject implied with 'ca'.

च (ca) - and; also

(indeclinable)

Note: Connects 'śabdaḥ' and 'bhūmikampaḥ'.

सुमहान् (sumahān) - very great; very large; immense

(adjective)

Nominative, masculine, singular of sumahat

sumahat - very great; very large; immense; excellent

`su` (prefix) + `mahat` (great)

Compound type : Praadi-samāsa (su+mahat)

• su – good; well; very; excellent
  indeclinable
  Prefix indicating excellence or intensity.
• mahat – great; large; mighty
  adjective

Note: Qualifies 'bhūmikampaḥ'.

पर्वतस्य (parvatasya) - of a mountain

(noun)

Genitive, masculine, singular of parvata

parvata - mountain; hill

Note: Used with 'iva' (like) to indicate comparison.

इव (iva) - like; as if; as it were

(indeclinable)

दीर्यतः (dīryataḥ) - of splitting; being torn apart; of bursting (genitive singular masculine present participle)

(participle)

Genitive, masculine, singular of dīryat

dīryat - splitting; tearing apart; breaking; bursting

Present Passive/Middle Participle

From root 'dṝ' (to tear, burst), in passive/middle voice ('dīryate'). Present participle, genitive singular masculine.

Root: dṝ (class 4)