योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-87, verse-2

मात्रादिपादभेदेन प्रणवं संस्मरन्यतिः ।
अध्यारोपापवादेन स्वरूपं शुद्धमव्ययम् ॥ २ ॥

mātrādipādabhedena praṇavaṃ saṃsmaranyatiḥ ,
adhyāropāpavādena svarūpaṃ śuddhamavyayam 2

2. mātrādipādabhedena praṇavam saṃsmaran yatiḥ
adhyāropāpavādena svarūpam śuddham avyayam

2. yatiḥ mātrādipādabhedena praṇavam saṃsmaran
adhyāropāpavādena śuddham avyayam svarūpam

2. The ascetic, meditating on Praṇava (Om) through the distinctions of its parts and feet, by means of superimposition and sublation, realizes the pure, immutable true nature (svarūpa).

Words meanings summery:

• मात्रादिपादभेदेन (mātrādipādabhedena) - through the distinctions of the parts and feet of Praṇava (by the distinction of mātrās (morae) and feet)

• प्रणवम् (praṇavam) - the sacred syllable Om (Praṇava)

• संस्मरन् (saṁsmaran) - remembering, meditating on, recollecting

• यतिः (yatiḥ) - an ascetic, a renunciant, a sage, one who strives for spiritual attainment

• अध्यारोपापवादेन (adhyāropāpavādena) - by the method of superimposition and sublation (negation)

• स्वरूपम् (svarūpam) - one's own form, true nature (svarūpa), essential nature

• शुद्धम् (śuddham) - pure, clean, unsullied, unblemished

• अव्ययम् (avyayam) - immutable, imperishable, unchangeable

Words meanings and morphology

मात्रादिपादभेदेन (mātrādipādabhedena) - through the distinctions of the parts and feet of Praṇava (by the distinction of mātrās (morae) and feet)

(noun)

Instrumental, masculine, singular of mātrādipādabheda

mātrādipādabheda - distinction of mātrās (morae) and feet/parts

Compound type : Tatpuruṣa (mātrā+ādi+pāda+bheda)

• mātrā – measure, quantity, duration (a mora); an element, part
  noun (feminine)
• ādi – beginning, source; and so on, et cetera
  indeclinable (masculine)
• pāda – foot; part, quarter; verse foot
  noun (masculine)
• bheda – distinction, difference, division, separation
  noun (masculine)

प्रणवम् (praṇavam) - the sacred syllable Om (Praṇava)

(noun)

Accusative, masculine, singular of praṇava

praṇava - the sacred syllable Om; a salute, reverence

संस्मरन् (saṁsmaran) - remembering, meditating on, recollecting

(adjective)

Nominative, masculine, singular of saṃsmarat

saṁsmarat - remembering, meditating, recollecting, calling to mind

Present Active Participle

Formed from root smṛ with prefix sam, and śatṛ suffix.

Prefix: sam

Root: smṛ (class 1)

यतिः (yatiḥ) - an ascetic, a renunciant, a sage, one who strives for spiritual attainment

(noun)

Nominative, masculine, singular of yati

yati - an ascetic, a renunciant, a sage, a religious mendicant

अध्यारोपापवादेन (adhyāropāpavādena) - by the method of superimposition and sublation (negation)

(noun)

Instrumental, masculine, singular of adhyāropāpavāda

adhyāropāpavāda - the method of superimposition and sublation (a philosophical concept)

Compound type : Dvandva (adhyāropa+apavāda)

• adhyāropa – superimposition, attribution, false imputation
  noun (masculine)
  Prefixes: adhi+ā
  Root: rup (class 1)
• apavāda – sublation, negation, refutation, exception
  noun (masculine)
  Prefix: apa
  Root: vad (class 1)

स्वरूपम् (svarūpam) - one's own form, true nature (svarūpa), essential nature

(noun)

Accusative, neuter, singular of svarūpa

svarūpa - one's own form, true nature, essential nature, identity

शुद्धम् (śuddham) - pure, clean, unsullied, unblemished

(adjective)

Accusative, neuter, singular of śuddha

śuddha - pure, clean, clear, spotless, innocent

Past Passive Participle

Formed from root śudh with kta suffix.

Root: śudh (class 4)

अव्ययम् (avyayam) - immutable, imperishable, unchangeable

(adjective)

Accusative, neuter, singular of avyaya

avyaya - immutable, imperishable, unchangeable, undiminishing

Formed with negating prefix 'a' on 'vyaya' (decay, expenditure).