योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-37, verse-27

यामपक्षदिनप्रेक्षाकटाक्षोद्भासिताम्बरम् ।
मज्जनोन्मज्जनव्यग्रकुलाद्रिकुलशेखरम् ॥ २७ ॥

yāmapakṣadinaprekṣākaṭākṣodbhāsitāmbaram ,
majjanonmajjanavyagrakulādrikulaśekharam 27

27. yāmapakṣadinaprekṣākaṭākṣodbhāsitāmbaram
majjanonmajjanavyagrakulādrikulaśekharam

27. yāmapakṣadinaprekṣākaṭākṣodbhāsitāmbaram
majjanonmajjanavyagrakulādrikulaśekharam

27. Its sky (ambara) is illuminated by side-glances (kaṭākṣa) that perceive vast spans of time like yāmas, fortnights (pakṣas), and days; and it stands as the crest-jewel of the families of primary mountain ranges (kulādri) that are ceaselessly diving and emerging.

Words meanings summery:

• यामपक्षदिनप्रेक्षाकटाक्षोद्भासिताम्बरम् (yāmapakṣadinaprekṣākaṭākṣodbhāsitāmbaram) - whose sky is illuminated by side-glances that perceive yāmas, pakṣas, and days

• मज्जनोन्मज्जनव्यग्रकुलाद्रिकुलशेखरम् (majjanonmajjanavyagrakulādrikulaśekharam) - the crest-jewel of the families of primary mountain ranges (kulādri) that are ceaselessly diving and emerging (the crest-jewel of families of mountain ranges busy diving and emerging)

Words meanings and morphology

यामपक्षदिनप्रेक्षाकटाक्षोद्भासिताम्बरम् (yāmapakṣadinaprekṣākaṭākṣodbhāsitāmbaram) - whose sky is illuminated by side-glances that perceive yāmas, pakṣas, and days

(adjective)

Accusative, neuter, singular of yāmapakṣadinaprekṣākaṭākṣodbhāsitāmbara

yāmapakṣadinaprekṣākaṭākṣodbhāsitāmbara - whose sky is illuminated by side-glances that perceive watches, fortnights, and days

Very long compound adjective.

Compound type : Bahuvrīhi (yāma+pakṣa+dina+prekṣā+kaṭākṣa+udbhāsita+ambara)

• yāma – watch of the day (3 hours), period of time
  noun (masculine)
  from yam (to restrain, control)
  Root: yam (class 1)
• pakṣa – fortnight, wing, side
  noun (masculine)
  from pakṣ (to join)
  Root: pakṣ (class 1)
• dina – day
  noun (neuter)
• prekṣā – seeing, beholding, looking, perception
  noun (feminine)
  from pra-īkṣ (to look at)
  Prefix: pra
  Root: īkṣ (class 1)
• kaṭākṣa – side-glance, sidelong glance, amorous glance
  noun (masculine)
  kaṭa (side) + akṣa (eye)
• udbhāsita – illuminated, made to shine, resplendent
  adjective
  Past Passive Participle
  from ud-bhās (to shine forth)
  Prefix: ud
  Root: bhās (class 1)
• ambara – sky, garment
  noun (neuter)

Note: Accusative singular neuter, agreeing with an implied object being described.

मज्जनोन्मज्जनव्यग्रकुलाद्रिकुलशेखरम् (majjanonmajjanavyagrakulādrikulaśekharam) - the crest-jewel of the families of primary mountain ranges (kulādri) that are ceaselessly diving and emerging (the crest-jewel of families of mountain ranges busy diving and emerging)

(adjective)

Accusative, neuter, singular of majjanonmajjanavyagrakulādrikulaśekhara

majjanonmajjanavyagrakulādrikulaśekhara - crest-jewel of the families of chief mountains busy with diving and emerging

Very long compound adjective.

Compound type : Bahuvrīhi (majjana+unmajjana+vyagra+kulādri+kula+śekhara)

• majjana – diving, sinking, immersion
  noun (neuter)
  from root majj (to sink, dive)
  Root: majj (class 6)
• unmajjana – emerging, rising up, coming to surface
  noun (neuter)
  from ud-majj (to rise up)
  Prefix: ud
  Root: majj (class 6)
• vyagra – busy, preoccupied, eager, engrossed
  adjective
  from vi-agra (having the front part separated)
  Prefix: vi
• kulādri – primary mountain, chief mountain range (one of seven mythical ranges)
  noun (masculine)
  kula (family, lineage) + adri (mountain)
• kula – family, lineage, group, multitude
  noun (neuter)
  Root: kul (class 1)
• śekhara – crest, summit, diadem, crest-jewel
  noun (masculine/neuter)
  from śikhā (crest)

Note: Accusative singular neuter, agreeing with an implied object being described.