योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-75, verse-30

श्वभ्ररूपारघट्टाट्टपट्टनोदारदिक्तटः ।
श्रृङ्गाणि सिद्धवृन्दानि गिरयः सागरार्णवाः ॥ ३० ॥

śvabhrarūpāraghaṭṭāṭṭapaṭṭanodāradiktaṭaḥ ,
śrṛṅgāṇi siddhavṛndāni girayaḥ sāgarārṇavāḥ 30

30. śvabhra-rūpa-arghaṭṭa-aṭṭa-paṭṭana-udāra-dik-taṭaḥ
śṛṅgāṇi siddhavṛndāni girayaḥ sāgara-arṇavāḥ

30. śvabhra-rūpa-arghaṭṭa-aṭṭa-paṭṭana-udāra-dik-taṭaḥ
śṛṅgāṇi siddhavṛndāni girayaḥ sāgara-arṇavāḥ

30. With vast boundaries of the directions appearing as chasms, water-wheels, watchtowers, and cities, the peaks, hosts of perfected beings (siddhavṛnda), mountains, and oceans (sāgarārṇava) [all were affected/blazed].

Words meanings summery:

• श्वभ्र-रूप-अर्घट्ट-अट्ट-पट्टन-उदार-दिक्-तटः (śvabhra-rūpa-arghaṭṭa-aṭṭa-paṭṭana-udāra-dik-taṭaḥ) - with vast borders of the directions appearing as chasms, water-wheels, watchtowers, and cities

• शृङ्गाणि (śṛṅgāṇi) - peaks, horns, summits

• सिद्धवृन्दानि (siddhavṛndāni) - hosts of perfected beings, groups of Siddhas

• गिरयः (girayaḥ) - mountains

• सागर-अर्णवाः (sāgara-arṇavāḥ) - oceans and seas

Words meanings and morphology

श्वभ्र-रूप-अर्घट्ट-अट्ट-पट्टन-उदार-दिक्-तटः (śvabhra-rūpa-arghaṭṭa-aṭṭa-paṭṭana-udāra-dik-taṭaḥ) - with vast borders of the directions appearing as chasms, water-wheels, watchtowers, and cities

(adjective)

Nominative, masculine, singular of śvabhra-rūpa-arghaṭṭa-aṭṭa-paṭṭana-udāra-dik-taṭa

śvabhra-rūpa-arghaṭṭa-aṭṭa-paṭṭana-udāra-dik-taṭa - one whose vast borders of directions have the appearance of chasms, water-wheels, watchtowers, and cities

Compound type : Bahuvrīhi (śvabhra-rūpa+arghaṭṭa+aṭṭa+paṭṭana+udāra-dik-taṭa)

• śvabhra-rūpa – having the form of a chasm
  noun (neuter)
• arghaṭṭa – water-wheel, well
  noun (masculine)
• aṭṭa – watchtower, market, platform
  noun (masculine)
• paṭṭana – city, town, capital
  noun (neuter)
• udāra-dik-taṭa – vast borders of the directions
  noun (masculine)

शृङ्गाणि (śṛṅgāṇi) - peaks, horns, summits

(noun)

Nominative, neuter, plural of śṛṅga

śṛṅga - horn, peak, summit, pinnacle

सिद्धवृन्दानि (siddhavṛndāni) - hosts of perfected beings, groups of Siddhas

(noun)

Nominative, neuter, plural of siddha-vṛnda

siddha-vṛnda - group/multitude of Siddhas

Compound type : Tatpuruṣa (siddha+vṛnda)

• siddha – perfected, accomplished, a perfected being
  noun (masculine)
  Past Passive Participle (used as noun)
  Derived from root sidh (to succeed, accomplish)
  Root: sidh (class 1)
• vṛnda – multitude, host, group
  noun (neuter)

गिरयः (girayaḥ) - mountains

(noun)

Nominative, masculine, plural of giri

giri - mountain, hill

सागर-अर्णवाः (sāgara-arṇavāḥ) - oceans and seas

(noun)

Nominative, masculine, plural of sāgara-arṇava

sāgara-arṇava - oceans and seas (collectively)

Compound type : Dvandva (sāgara+arṇava)

• sāgara – ocean, sea
  noun (masculine)
• arṇava – ocean, sea, flood
  noun (masculine)