योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-13, verse-9

बृहद्ब्रह्मतरुप्रौढसत्ताव्रततिकोटिगम् ।
अहंकारमहावृन्तं समालोकसमुज्ज्वलम् ॥ ९ ॥

bṛhadbrahmataruprauḍhasattāvratatikoṭigam ,
ahaṃkāramahāvṛntaṃ samālokasamujjvalam 9

9. bṛhadbrahmataruprauḍhasattāvratatikoṭigam
ahaṃkāramahāvṛntam samālokasamujjvalam

9. bṛhadbrahmataruprauḍhasattāvratatikoṭigam
ahaṃkāramahāvṛntam samālokasamujjvalam

9. It encompasses millions of mature, creeper-like manifestations of existence stemming from the vast tree of Brahman. Its great stalk is the ego (ahaṅkāra), and it shines radiantly with universal perception.

Words meanings summery:

• बृहद्ब्रह्मतरुप्रौढसत्ताव्रततिकोटिगम् (bṛhadbrahmataruprauḍhasattāvratatikoṭigam) - extending to millions of fully developed creeper-like existences of the great tree of Brahman

• अहंकारमहावृन्तम् (ahaṁkāramahāvṛntam) - having the ego (ahaṅkāra) as its great stalk

• समालोकसमुज्ज्वलम् (samālokasamujjvalam) - shining brilliantly with universal light/perception

Words meanings and morphology

बृहद्ब्रह्मतरुप्रौढसत्ताव्रततिकोटिगम् (bṛhadbrahmataruprauḍhasattāvratatikoṭigam) - extending to millions of fully developed creeper-like existences of the great tree of Brahman

(adjective)

Accusative, neuter, singular of bṛhadbrahmataruprauḍhasattāvratatikoṭiga

bṛhadbrahmataruprauḍhasattāvratatikoṭiga - that which extends to millions of mature creepers of existence from the great tree of Brahman (brahman)

Compound type : bahuvrīhi (bṛhat+brahman+taru+prauḍha+sattā+vratati+koṭi+ga)

• bṛhat – great, vast, large
  adjective
• brahman – the Absolute Reality, the ultimate truth (brahman)
  noun (neuter)
• taru – tree
  noun (masculine)
• prauḍha – mature, fully developed, strong
  adjective
  Derived from pra-√vah (to carry forward)
  Prefix: pra
  Root: vah (class 1)
• sattā – existence, being, reality
  noun (feminine)
• vratati – creeper, climbing plant
  noun (feminine)
• koṭi – million, ten million, apex, extreme
  noun (feminine)
• ga – going, reaching, extending to
  adjective
  agent noun/suffix
  Derived from root gam (to go)
  Root: gam (class 1)

अहंकारमहावृन्तम् (ahaṁkāramahāvṛntam) - having the ego (ahaṅkāra) as its great stalk

(adjective)

Accusative, neuter, singular of ahaṃkāramahāvṛnta

ahaṁkāramahāvṛnta - that which has ego (ahaṅkāra) as its great stalk

Compound type : bahuvrīhi (ahaṅkāra+mahā+vṛnta)

• ahaṅkāra – ego, sense of 'I-ness' (ahaṅkāra)
  noun (masculine)
• mahā – great, large, mighty
  adjective
• vṛnta – stalk, stem (of a flower or fruit)
  noun (neuter)

समालोकसमुज्ज्वलम् (samālokasamujjvalam) - shining brilliantly with universal light/perception

(adjective)

Accusative, neuter, singular of samālokasamujjvala

samālokasamujjvala - that which shines brightly with universal light

Compound type : bahuvrīhi (samāloka+samujjvala)

• samāloka – universal perception, full view, light
  noun (masculine)
  Derived from sam + ā + √lok (to see)
  Prefixes: sam+ā
  Root: lok (class 10)
• samujjvala – shining brightly, radiant, resplendent
  adjective
  Derived from sam + ut + √jval (to shine)
  Prefixes: sam+ut
  Root: jval (class 1)