योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-128, verse-31

तमसोऽन्ते विरिञ्चाण्डकवाटच्छेदभूतलम् ।
वज्रसारं हेममयं कोटियोजनविस्तृतम् ॥ ३१ ॥

tamaso'nte viriñcāṇḍakavāṭacchedabhūtalam ,
vajrasāraṃ hemamayaṃ koṭiyojanavistṛtam 31

31. tamasas ante viriñcāṇḍakavāṭacchedabhūtalam
vajrasāram hemamayam koṭiyojanavistṛtam

31. tamasas ante viriñcāṇḍakavāṭacchedabhūtalam
vajrasāram hemamayam koṭiyojanavistṛtam

31. At the end of that darkness (tamas), there was a ground-level (bhūtala) formed by the piercing of the door-like shell of Brahma's cosmic egg (viriñca-āṇḍa). It was hard as a diamond (vajra-sāra), made of gold (hema-maya), and extended for millions of yojanas.

Words meanings summery:

• तमसस् (tamasas) - of darkness, from darkness

• अन्ते (ante) - at the end, in the end

• विरिञ्चाण्डकवाटच्छेदभूतलम् (viriñcāṇḍakavāṭacchedabhūtalam) - the ground formed by the breaking of the door of Brahma's cosmic egg

• वज्रसारम् (vajrasāram) - adamantine, diamond-hard, essence of thunderbolt

• हेममयम् (hemamayam) - golden, made of gold

• कोटियोजनविस्तृतम् (koṭiyojanavistṛtam) - extended for millions of yojanas

Words meanings and morphology

तमसस् (tamasas) - of darkness, from darkness

(noun)

Genitive, neuter, singular of tamas

tamas - darkness, gloom, ignorance, illusion

From root `tam` (to be bewildered) + `as` suffix.

Root: tam (class 4)

Note: Possessive, indicating the 'end of darkness'.

अन्ते (ante) - at the end, in the end

(noun)

Locative, masculine, singular of anta

anta - end, limit, boundary, conclusion

विरिञ्चाण्डकवाटच्छेदभूतलम् (viriñcāṇḍakavāṭacchedabhūtalam) - the ground formed by the breaking of the door of Brahma's cosmic egg

(noun)

Nominative, neuter, singular of viriñcāṇḍakavāṭacchedabhūtala

viriñcāṇḍakavāṭacchedabhūtala - the ground-level that is a result of piercing/breaking the door-like shell of Brahma's cosmic egg

Compound type : tatpurusha (viriñca+aṇḍa+kavāṭa+ccheda+bhūtala)

• viriñca – Brahma (the creator deity)
  proper noun (masculine)
• aṇḍa – egg, cosmic egg, universe
  noun (neuter)
• kavāṭa – door, door-panel, shutter
  noun (neuter)
• ccheda – cutting, breaking, piercing, division
  noun (masculine)
  From root `chid` + suffix `a`.
  Root: chid (class 7)
• bhūtala – ground, surface of the earth, earth
  noun (neuter)
  From `bhū` (earth) + `tala` (surface).

Note: Predicate or implied subject of existence.

वज्रसारम् (vajrasāram) - adamantine, diamond-hard, essence of thunderbolt

(adjective)

Nominative, neuter, singular of vajrasāra

vajrasāra - hard as diamond, adamantine, of the essence of a thunderbolt

Compound type : tatpurusha (vajra+sāra)

• vajra – thunderbolt, diamond
  noun (masculine)
• sāra – essence, core, strength, hard, firm
  noun (masculine)

हेममयम् (hemamayam) - golden, made of gold

(adjective)

Nominative, neuter, singular of hemamaya

hemamaya - made of gold, golden

From `heman` (gold) + `maya` (made of).

Compound type : tatpurusha (heman+maya)

• heman – gold
  noun (neuter)
• maya – made of, consisting of
  suffix

कोटियोजनविस्तृतम् (koṭiyojanavistṛtam) - extended for millions of yojanas

(adjective)

Nominative, neuter, singular of koṭiyojanavistṛta

koṭiyojanavistṛta - extending over millions of yojanas, vast in extent (millions of yojanas)

Compound type : bahuvrihi (koṭi+yojana+vistṛta)

• koṭi – ten million, a crore, multitude
  noun (feminine)
• yojana – a measure of distance (approx. 8-15 km), a stage of a journey
  noun (neuter)
  From root `yuj` + suffix `ana`.
  Root: yuj (class 7)
• vistṛta – extended, vast, spread out, wide
  Past Passive Participle
  Past Passive Participle
  From `vi` + root `stṛ` (to spread) + `kta` suffix.
  Prefix: vi
  Root: stṛ (class 5)