योगवासिष्ठः yogavāsiṣṭhaḥ - book-1, chapter-33, verse-5

अग्रस्थितमनुत्सृष्टरणद्वीणं मुनीश्वरम् ।
पयः पीनघनश्यामं व्यासमेव किलान्तरा ॥ ५ ॥

agrasthitamanutsṛṣṭaraṇadvīṇaṃ munīśvaram ,
payaḥ pīnaghanaśyāmaṃ vyāsameva kilāntarā 5

5. agrasthitam anutsṛṣṭaraṇadvīṇam munīśvaram
payas pīnaghanaśyāmam vyāsam eva kila antarā

5. kila antarā agrasthitam anutsṛṣṭaraṇadvīṇam
munīśvaram payas pīnaghanaśyāmam vyāsam eva

5. Indeed, they descended among Vyāsa himself, the lord of sages (munīśvara), who was seated at the forefront, whose resounding vīṇā was not yet put down, and who was robust with vitality and dark like a dense cloud (ghanaśyāma).

Words meanings summery:

• अग्रस्थितम् (agrasthitam) - standing at the front, placed at the head, foremost

• अनुत्सृष्टरणद्वीणम् (anutsṛṣṭaraṇadvīṇam) - whose vīṇā was still held or ready to be played (whose resounding vīṇā was not given up/put down)

• मुनीश्वरम् (munīśvaram) - lord of sages, chief ascetic

• पयस् (payas) - vitality, richness, essence (in a compound describing Vyāsa's robust physique) (milk, water, essence, vigor)

• पीनघनश्यामम् (pīnaghanaśyāmam) - robust and dark-complexioned like a dense cloud (describing Vyāsa) (stout/full and dark like a dense cloud)

• व्यासम् (vyāsam) - Vyāsa (proper noun)

• एव (eva) - only, indeed, truly, just

• किल (kila) - indeed, certainly, it is said

• अन्तरा (antarā) - among (Vyāsa and other sages) (between, among, within, during)

Words meanings and morphology

अग्रस्थितम् (agrasthitam) - standing at the front, placed at the head, foremost

(adjective)

Accusative, masculine, singular of agrasthita

agrasthita - standing at the front, placed at the head, foremost

Past Passive Participle

Compound: agra (front) + sthita (standing/placed). sthita is PPP of √sthā.

Compound type : tatpuruṣa (agra+sthita)

• agra – front, tip, top, chief
  noun (neuter)
• sthita – standing, situated, firm, existing
  adjective (neuter)
  Past Passive Participle
  From root sthā (to stand) with kṛt suffix -ta.
  Root: sthā (class 1)

अनुत्सृष्टरणद्वीणम् (anutsṛṣṭaraṇadvīṇam) - whose vīṇā was still held or ready to be played (whose resounding vīṇā was not given up/put down)

(adjective)

Accusative, masculine, singular of anutsṛṣṭaraṇadvīṇa

anutsṛṣṭaraṇadvīṇa - one whose resounding vīṇā is not relinquished

Bahuvrīhi compound: na (not) + utsṛṣṭa (given up) + raṇat (resounding) + vīṇā (lute).

Compound type : bahuvrīhi (a+utsṛṣṭa+raṇat+vīṇā)

• a – not, un-
  indeclinable
  negative prefix
• utsṛṣṭa – given up, abandoned, let go, discharged
  adjective (neuter)
  Past Passive Participle
  From ut + root sṛj (to let go) with kṛt suffix -ta.
  Prefix: ut
  Root: sṛj (class 6)
• raṇat – resounding, tinkling, sounding
  adjective (masculine)
  Present Active Participle
  From root raṇ (to sound) with śatṛ suffix.
  Root: raṇ (class 1)
• vīṇā – lute, a stringed musical instrument
  noun (feminine)

मुनीश्वरम् (munīśvaram) - lord of sages, chief ascetic

(noun)

Accusative, masculine, singular of munīśvara

munīśvara - lord of sages, chief ascetic

Compound: muni (sage) + īśvara (lord)

Compound type : tatpuruṣa (muni+īśvara)

• muni – sage, ascetic, hermit
  noun (masculine)
  Root: man (class 4)
• īśvara – lord, master, controller, god
  noun (masculine)
  From root īś (to be master of) with suffix -vara.
  Root: īś (class 2)

पयस् (payas) - vitality, richness, essence (in a compound describing Vyāsa's robust physique) (milk, water, essence, vigor)

(noun)

Nominative, neuter, singular of payas

payas - milk, water, fluid, vigor, essence

Note: Nom. sg. or Acc. sg. neuter. Here interpreted as the first part of a karmadhāraya compound: payas-pīna-ghana-śyāma, referring to Vyāsa's physique and complexion.

पीनघनश्यामम् (pīnaghanaśyāmam) - robust and dark-complexioned like a dense cloud (describing Vyāsa) (stout/full and dark like a dense cloud)

(adjective)

Accusative, masculine, singular of pīnaghanaśyāma

pīnaghanaśyāma - stout/full and dark like a dense cloud

Karmadhāraya compound: pīna (stout/full) + ghana (dense) + śyāma (dark).

Compound type : karmadhāraya (pīna+ghana+śyāma)

• pīna – stout, plump, full, thick
  adjective (neuter)
  Past Passive Participle
  From root pyāi (to be fat, swell) or pī (to swell), with kṛt suffix -na.
  Root: pyāi (class 1)
• ghana – dense, thick, compact, cloud
  adjective (masculine)
  Root: han (class 2)
• śyāma – dark, black, dark-blue, green (color)
  adjective (masculine)

Note: Describes Vyāsa's appearance.

व्यासम् (vyāsam) - Vyāsa (proper noun)

(proper noun)

Accusative, masculine, singular of vyāsa

vyāsa - Vyāsa (proper noun, name of a revered sage, compiler of the Vedas and author of the Mahābhārata)

From vi + √as (to throw, to cast, to divide), meaning 'divider' or 'compiler'.

Prefix: vi

Root: as (class 4)

एव (eva) - only, indeed, truly, just

(indeclinable)

Emphatic particle

किल (kila) - indeed, certainly, it is said

(indeclinable)

Particle, sometimes expresses emphasis, sometimes reportage.

अन्तरा (antarā) - among (Vyāsa and other sages) (between, among, within, during)

(indeclinable)

Adverb/preposition; derived from antara.