योगवासिष्ठः yogavāsiṣṭhaḥ - book-2, chapter-18, verse-67

दृष्टान्तस्यांशमात्रेण बोध्यबोधोदये सति ।
उपादेयतया ग्राह्यो महावाक्यार्थनिश्चयः ॥ ६७ ॥

dṛṣṭāntasyāṃśamātreṇa bodhyabodhodaye sati ,
upādeyatayā grāhyo mahāvākyārthaniścayaḥ 67

67. dṛṣṭāntasya aṃśamātreṇa bodhyabodha udaye sati
| upādeyatayā grāhyaḥ mahāvākyārthaniścayaḥ ||

67. (sati) dṛṣṭāntasya aṃśamātreṇa bodhyabodha udaye,
mahāvākyārthaniścayaḥ upādeyatayā grāhyaḥ (bhavati)

67. When the understanding of what is to be known arises even from a mere part of an illustration, the ascertainment of the meaning of the great statement (mahāvākya) should be accepted as worthy of adoption.

Words meanings summery:

• दृष्टान्तस्य (dṛṣṭāntasya) - of the example, of the illustration

• अंशमात्रेण (aṁśamātreṇa) - by a mere part, by only a portion

• बोध्यबोध (bodhyabodha) - understanding of the knowable, knowledge of the object to be known

• उदये (udaye) - in the arising, in the rising, at the appearance

• सति (sati) - being, existing, when it is

• उपादेयतया (upādeyatayā) - by way of worthiness of acceptance, as something to be adopted, because of its acceptability

• ग्राह्यः (grāhyaḥ) - to be accepted, should be grasped, is to be adopted

• महावाक्यार्थनिश्चयः (mahāvākyārthaniścayaḥ) - the definitive understanding of the meaning of a mahāvākya (a great statement from the Upaniṣads) (the ascertainment of the meaning of the great statement)

Words meanings and morphology

दृष्टान्तस्य (dṛṣṭāntasya) - of the example, of the illustration

(noun)

Genitive, masculine, singular of dṛṣṭānta

dṛṣṭānta - example, illustration, instance, parallel

From dṛṣṭa (seen) + anta (end, limit). Lit: 'seen end' or 'what is seen as an end', thus an example.

अंशमात्रेण (aṁśamātreṇa) - by a mere part, by only a portion

(adjective)

Instrumental, neuter, singular of aṃśamātra

aṁśamātra - a mere part, only a portion

Compound of aṃśa and mātra.

Compound type : tatpurusha (aṃśa+mātra)

• aṃśa – part, portion, share
  noun (masculine)
• mātra – mere, only, simply, just
  indeclinable
  Suffix -mātra, forming adjectives or indeclinables meaning 'only', 'just'.

Note: Acts adverbially here.

बोध्यबोध (bodhyabodha) - understanding of the knowable, knowledge of the object to be known

(noun)

Nominative, masculine, singular of bodhyabodha

bodhyabodha - understanding of the knowable, knowledge of what is to be understood

Compound of bodhya and bodha.

Compound type : tatpurusha (bodhya+bodha)

• bodhya – to be known, knowable, intelligible
  adjective (neuter)
  Gerundive
  Root budh + suffix -ya.
  Root: budh (class 1)
• bodha – knowledge, understanding, perception, awakening
  noun (masculine)
  From root budh.
  Root: budh (class 1)

Note: Part of a locative absolute construction.

उदये (udaye) - in the arising, in the rising, at the appearance

(noun)

Locative, masculine, singular of udaya

udaya - arising, rising, appearance, prosperity, dawn

From ud- + root i.

Prefix: ud

Root: i (class 2)

Note: Part of a locative absolute construction.

सति (sati) - being, existing, when it is

(adjective)

Locative, masculine, singular of sat

sat - being, existing, real, good, true

Present Active Participle

From root as (to be).

Root: as (class 2)

Note: Used in a locative absolute construction with 'udaye'.

उपादेयतया (upādeyatayā) - by way of worthiness of acceptance, as something to be adopted, because of its acceptability

(noun)

Instrumental, feminine, singular of upādeyatā

upādeyatā - acceptability, worthiness of adoption, usefulness

From upādeya + suffix -tā.

ग्राह्यः (grāhyaḥ) - to be accepted, should be grasped, is to be adopted

(adjective)

Nominative, masculine, singular of grāhya

grāhya - to be grasped, to be accepted, comprehensible, valid

Gerundive

Root grah + suffix -ya.

Root: grah (class 9)

Note: Predicative adjective.

महावाक्यार्थनिश्चयः (mahāvākyārthaniścayaḥ) - the definitive understanding of the meaning of a mahāvākya (a great statement from the Upaniṣads) (the ascertainment of the meaning of the great statement)

(noun)

Nominative, masculine, singular of mahāvākyārthaniścaya

mahāvākyārthaniścaya - ascertainment of the meaning of a great statement

Compound of mahāvākya, artha, and niścaya.

Compound type : tatpurusha (mahāvākya+artha+niścaya)

• mahāvākya – great statement, a principal statement (especially referring to Upaniṣadic statements like 'Tat tvam asi')
  noun (neuter)
  Compound of mahā and vākya.
• artha – meaning, purpose, object, wealth
  noun (masculine)
• niścaya – ascertainment, certainty, conviction, decision
  noun (masculine)
  From ni- + root ci.
  Prefix: ni
  Root: ci (class 5)

Note: Subject of the sentence (implied 'is').