योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-25, verse-26

आव्योमसु चतुर्दिक्षु श्वभ्रसंभारभीषया ।
अर्धोन्म्लानतमोरूपलग्ननीलोत्पलस्रजा ॥ २६ ॥

āvyomasu caturdikṣu śvabhrasaṃbhārabhīṣayā ,
ardhonmlānatamorūpalagnanīlotpalasrajā 26

26. āvyomasu caturdikṣu śvabhra-saṃbhāra-bhīṣayā
ardhonmlānatamorūpalagnanīlotpalasrajā

26. caturdikṣu āvyomasu,
śvabhra-saṃbhāra-bhīṣayā,
ardhonmlānatamorūpalagnanīlotpalasrajā

26. This (layer/region) extends upwards to the skies in all four directions, generating terror with its mass of chasms, and appears like a garland of blue lotuses clinging to the form of dim darkness.

Words meanings summery:

• आव्योमसु (āvyomasu) - extending up to the celestial realm (unto the skies, reaching to the heavens)

• चतुर्दिक्षु (caturdikṣu) - in the four directions

• श्वभ्र-संभार-भीषया (śvabhra-saṁbhāra-bhīṣayā) - by the terror created by the vast collection of chasms (describing the trench) (by the terror of a mass of chasms, by the frightening aspect of a multitude of abysses)

• अर्धोन्म्लानतमोरूपलग्ननीलोत्पलस्रजा (ardhonmlānatamorūpalagnanīlotpalasrajā) - by a garland of blue lotuses clinging to the dim form of darkness (a poetic description of the abyss) (by a garland of blue lotuses attached to the form of semi-obscured darkness)

Words meanings and morphology

आव्योमसु (āvyomasu) - extending up to the celestial realm (unto the skies, reaching to the heavens)

(noun)

Locative, neuter, plural of āvyoman

āvyoman - up to the sky, reaching the heavens

Compound of prefix 'ā' + noun 'vyoman'

Compound type : avyayībhāva (ā+vyoman)

• ā – up to, until, inclusive
  indeclinable
• vyoman – sky, atmosphere, space
  noun (neuter)

चतुर्दिक्षु (caturdikṣu) - in the four directions

(noun)

Locative, feminine, plural of caturdiś

caturdiś - the four cardinal directions

Compound of catur (four) + diś (direction)

Compound type : tatpuruṣa (catur+diś)

• catur – four
  numeral
• diś – direction, quarter
  noun (feminine)

श्वभ्र-संभार-भीषया (śvabhra-saṁbhāra-bhīṣayā) - by the terror created by the vast collection of chasms (describing the trench) (by the terror of a mass of chasms, by the frightening aspect of a multitude of abysses)

(noun)

Instrumental, feminine, singular of śvabhra-saṃbhāra-bhīṣā

śvabhra-saṁbhāra-bhīṣā - terror of a mass of chasms

Compound of śvabhra (chasm) + saṃbhāra (mass) + bhīṣā (terror)

Compound type : tatpuruṣa (śvabhra+saṃbhāra+bhīṣā)

• śvabhra – chasm, abyss, pit
  noun (neuter)
• saṃbhāra – collection, mass, accumulation
  noun (masculine)
• bhīṣā – terror, fright, fear
  noun (feminine)
  From root bhī (to fear)
  Root: bhī (class 3)

अर्धोन्म्लानतमोरूपलग्ननीलोत्पलस्रजा (ardhonmlānatamorūpalagnanīlotpalasrajā) - by a garland of blue lotuses clinging to the dim form of darkness (a poetic description of the abyss) (by a garland of blue lotuses attached to the form of semi-obscured darkness)

(noun)

Instrumental, feminine, singular of ardhonmlānatamorūpalagnanīlotpalasraj

ardhonmlānatamorūpalagnanīlotpalasraj - garland of blue lotuses clinging to the form of semi-obscured darkness

Complex compound noun ending in sraj (garland)

Compound type : tatpuruṣa (ardha+unmlāna+tamas+rūpa+lagna+nīla+utpala+sraj)

• ardha – half
  adjective
• unmlāna – faded, withered, half-open; dim, obscured
  adjective
  Past Passive Participle
  From upasarga 'ud' + root 'mlai' (to fade)
  Prefix: ud
  Root: mlai (class 1)
• tamas – darkness, gloom
  noun (neuter)
• rūpa – form, appearance, shape
  noun (neuter)
• lagna – attached, clinging, fixed
  adjective
  Past Passive Participle
  From root 'lag' (to cling, stick)
  Root: lag (class 1)
• nīla – blue, dark blue
  adjective
• utpala – lotus, water lily
  noun (neuter)
• sraj – garland, wreath
  noun (feminine)