योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-54, verse-5

सार्धत्र्यंशात्ममात्रस्य प्रथमेंऽशे स्फुटारवे ।
प्रणवस्य समाक्षुब्धप्राणारणितदेहके ॥ ५ ॥

sārdhatryaṃśātmamātrasya prathameṃ'śe sphuṭārave ,
praṇavasya samākṣubdhaprāṇāraṇitadehake 5

5. sārdhatryaṃśātmamātrasya prathame aṃśe sphuṭārave
praṇavasya samākṣubdhaprāṇāraṇitadehake

5. samākṣubdhaprāṇāraṇitadehake sārdhatryaṃśātmamātrasya
praṇavasya prathame aṃśe sphuṭārave

5. Within the body, which was thoroughly agitated by the resonant sound of the life-force (prāṇa), during the first part, with its clear sound, of the praṇava (Om), whose intrinsic nature (ātman) consists of merely three and a half mātrās.

Words meanings summery:

• सार्धत्र्यंशात्ममात्रस्य (sārdhatryaṁśātmamātrasya) - of the praṇava (Om) whose intrinsic nature consists of three and a half mātrās (of that whose intrinsic nature is three and a half mātrās)

• प्रथमे (prathame) - in the first part (of Om) (in the first, in the primary)

• अंशे (aṁśe) - in the part (of the praṇava) (in the part, in the share)

• स्फुटारवे (sphuṭārave) - in the part (of Praṇava) which has a clear sound (in/with a clear sound, clearly sounding)

• प्रणवस्य (praṇavasya) - of the sacred syllable Om (of the praṇava, of Om)

• समाक्षुब्धप्राणारणितदेहके (samākṣubdhaprāṇāraṇitadehake) - in the practitioner's body, which is agitated by the vibrating sound of the prāṇa (in the body agitated by the sound of the life-force)

Words meanings and morphology

सार्धत्र्यंशात्ममात्रस्य (sārdhatryaṁśātmamātrasya) - of the praṇava (Om) whose intrinsic nature consists of three and a half mātrās (of that whose intrinsic nature is three and a half mātrās)

(adjective)

Genitive, masculine, singular of sārdhatryaṃśātmamātra

sārdhatryaṁśātmamātra - having the intrinsic nature of three and a half mātrās

Compound type : Bahuvrīhi (sārdha+tryaṃśa+ātman+mātrā)

• sārdha – with half, half-added
  adjective
• tryaṃśa – three parts, three portions
  noun (masculine)
• ātman – self, soul, essence, intrinsic nature
  noun (masculine)
• mātrā – measure, unit of sound, mora
  noun (feminine)

प्रथमे (prathame) - in the first part (of Om) (in the first, in the primary)

(adjective)

Locative, masculine, singular of prathama

prathama - first, foremost, primary

अंशे (aṁśe) - in the part (of the praṇava) (in the part, in the share)

(noun)

Locative, masculine, singular of aṃśa

aṁśa - part, share, portion, division

स्फुटारवे (sphuṭārave) - in the part (of Praṇava) which has a clear sound (in/with a clear sound, clearly sounding)

(adjective)

Locative, masculine, singular of sphuṭārava

sphuṭārava - clear sound, distinctly voiced

Compound type : Bahuvrīhi (sphuṭa+ārava)

• sphuṭa – clear, distinct, manifest
  adjective
• ārava – sound, noise, roar
  noun (masculine)

प्रणवस्य (praṇavasya) - of the sacred syllable Om (of the praṇava, of Om)

(noun)

Genitive, masculine, singular of praṇava

praṇava - the mystic syllable Om, sounding, hum

Derived from pra-nu 'to sound'.

Prefix: pra

Root: nu (class 2)

समाक्षुब्धप्राणारणितदेहके (samākṣubdhaprāṇāraṇitadehake) - in the practitioner's body, which is agitated by the vibrating sound of the prāṇa (in the body agitated by the sound of the life-force)

(adjective)

Locative, masculine, singular of samākṣubdhaprāṇāraṇitadehaka

samākṣubdhaprāṇāraṇitadehaka - whose body is thoroughly agitated by the sounding of the life-force

Compound type : Bahuvrīhi (samākṣubdha+prāṇa+araṇita+dehaka)

• samākṣubdha – thoroughly agitated, greatly disturbed
  adjective
  Past Passive Participle
  Past Passive Participle of root 'kṣubh' with prefixes 'sam-' and 'ā-'.
  Prefixes: sam+ā
  Root: kṣubh (class 1)
• prāṇa – life-force, breath, vital energy
  noun (masculine)
• araṇita – sounded, resonated, vibrated
  adjective
  Past Passive Participle
  Past Passive Participle of root 'raṇ'.
  Root: raṇ (class 1)
• dehaka – body, small body, the physical frame
  noun (masculine)
  Diminutive or emphasizing suffix -ka added to 'deha'.