योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-9, verse-10

सात्त्विकस्यास्य भागस्य नागविद्याधरास्तमः ।
रजस्तु मुनयः सिद्धाः सत्त्वं देवा हरादयः ॥ १० ॥

sāttvikasyāsya bhāgasya nāgavidyādharāstamaḥ ,
rajastu munayaḥ siddhāḥ sattvaṃ devā harādayaḥ 10

10. sāttvikasya asya bhāgasya nāgavidyādharāḥ tamaḥ
rajaḥ tu munayaḥ siddhāḥ sattvam devāḥ harādayaḥ

10. asya sāttvikasya bhāgasya nāgavidyādharāḥ tamaḥ
tu munayaḥ siddhāḥ rajaḥ devāḥ harādayaḥ sattvam

10. Within this very sättvika aspect (of ignorance), the nāgas and vidyādharas represent tamas, while the ascetics and perfected beings represent rajas, and the gods, led by Hara (Śiva), represent sattva.

Words meanings summery:

• सात्त्विकस्य (sāttvikasya) - of the sättvika

• अस्य (asya) - of this, of that

• भागस्य (bhāgasya) - of the part, of the portion

• नागविद्याधराः (nāgavidyādharāḥ) - Nāgas and Vidyādharas

• तमः (tamaḥ) - tamas, darkness, inertia

• रजः (rajaḥ) - rajas, passion, activity

• तु (tu) - but, indeed, on the other hand

• मुनयः (munayaḥ) - ascetics, recluses

• सिद्धाः (siddhāḥ) - perfected beings, accomplished ones

• सत्त्वम् (sattvam) - sattva, goodness, purity

• देवाः (devāḥ) - gods, deities

• हरादयः (harādayaḥ) - Hara (Śiva) and others, beginning with Hara

Words meanings and morphology

सात्त्विकस्य (sāttvikasya) - of the sättvika

(adjective)

Genitive, masculine, singular of sāttvika

sāttvika - relating to sattva, pure, good, virtuous, serene

derived from 'sattva' with the suffix 'ṭhak'

Note: Agrees with 'bhāgasya'

अस्य (asya) - of this, of that

(pronoun)

Genitive, masculine, singular of idam

idam - this, this one

Note: Agrees with 'bhāgasya'

भागस्य (bhāgasya) - of the part, of the portion

(noun)

Genitive, masculine, singular of bhāga

bhāga - part, portion, share, division

नागविद्याधराः (nāgavidyādharāḥ) - Nāgas and Vidyādharas

(noun)

Nominative, masculine, plural of nāgavidyādhara

nāgavidyādhara - Nāgas and Vidyādharas (a collective term)

Compound type : dvandva (nāga+vidyādhara)

• nāga – serpent, snake deity
  noun (masculine)
• vidyādhara – holder of knowledge, celestial musician
  noun (masculine)

तमः (tamaḥ) - tamas, darkness, inertia

(noun)

Nominative, neuter, singular of tamas

tamas - darkness, gloom, inertia, one of the three guṇas (qualities of nature)

रजः (rajaḥ) - rajas, passion, activity

(noun)

Nominative, neuter, singular of rajas

rajas - dust, gloom, passion, activity, one of the three guṇas (qualities of nature)

तु (tu) - but, indeed, on the other hand

(indeclinable)

मुनयः (munayaḥ) - ascetics, recluses

(noun)

Nominative, masculine, plural of muni

muni - ascetic, recluse, sage, silent one

सिद्धाः (siddhāḥ) - perfected beings, accomplished ones

(noun)

Nominative, masculine, plural of siddha

siddha - perfected, accomplished; a perfected being, a semi-divine being

Past Passive Participle

derived from √sidh (to accomplish)

Root: sidh (class 1)

सत्त्वम् (sattvam) - sattva, goodness, purity

(noun)

Nominative, neuter, singular of sattva

sattva - existence, reality, essence, goodness, purity, one of the three guṇas (qualities of nature)

देवाः (devāḥ) - gods, deities

(noun)

Nominative, masculine, plural of deva

deva - god, deity, divine being

हरादयः (harādayaḥ) - Hara (Śiva) and others, beginning with Hara

(noun)

Nominative, masculine, plural of harādi

harādi - Hara and others (a group led by Hara)

Compound type : bahuvrihi (hara+ādi)

• hara – Shiva (the destroyer), taking away
  proper noun (masculine)
• ādi – beginning, et cetera, and so on
  noun (masculine)
  often used as a suffix to denote a group starting with the preceding word