योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-67, verse-44

दृढाभ्यासाभिधानेन यत्ननाम्ना स्वकर्मणा ।
निजवेदनजेनैव सिद्धिर्भवति नान्यथा ॥ ४४ ॥

dṛḍhābhyāsābhidhānena yatnanāmnā svakarmaṇā ,
nijavedanajenaiva siddhirbhavati nānyathā 44

44. dṛḍhābhyāsābhidhānena yatnanāmnā svakarmaṇā
nijavedanajena eva siddhiḥ bhavati na anyathā

44. siddhiḥ dṛḍhābhyāsābhidhānena yatnanāmnā
svakarmaṇā nijavedanajena eva bhavati na anyathā

44. Success (siddhi) is achieved only through one's own action (karma), which is known by the name 'firm practice (abhyāsa)' and 'effort,' and which is born from one's intrinsic understanding. It is not achieved otherwise.

Words meanings summery:

• दृढाभ्यासाभिधानेन (dṛḍhābhyāsābhidhānena) - by the designation of firm practice

• यत्ननाम्ना (yatnanāmnā) - by the name of effort

• स्वकर्मणा (svakarmaṇā) - by one's own action (karma)

• निजवेदनजेन (nijavedanajena) - by that which is born from one's own knowledge/understanding

• एव (eva) - indeed, only, very

• सिद्धिः (siddhiḥ) - success, accomplishment, attainment, perfection

• भवति (bhavati) - occurs, happens, becomes

• न (na) - not, no

• अन्यथा (anyathā) - otherwise, in another way

Words meanings and morphology

दृढाभ्यासाभिधानेन (dṛḍhābhyāsābhidhānena) - by the designation of firm practice

(noun)

Instrumental, neuter, singular of dṛḍhābhyāsābhidhāna

dṛḍhābhyāsābhidhāna - designation of firm practice

Compound type : tatpuruṣa (dṛḍhābhyāsa+abhidhāna)

• dṛḍhābhyāsa – firm practice
  noun (masculine)
• dṛḍha – firm, strong, solid
  adjective (masculine)
  Past Passive Participle
  from dṛh
  Root: dṛh (class 1)
• abhyāsa – practice, repetition
  noun (masculine)
  Prefixes: abhi+ā
  Root: as (class 4)
• abhidhāna – name, designation, appellation
  noun (neuter)
  Prefix: abhi
  Root: dhā (class 3)

यत्ननाम्ना (yatnanāmnā) - by the name of effort

(noun)

Instrumental, neuter, singular of yatnanāman

yatnanāman - the name 'effort'

Compound type : tatpuruṣa (yatna+nāman)

• yatna – effort, exertion
  noun (masculine)
• nāman – name, appellation
  noun (neuter)

स्वकर्मणा (svakarmaṇā) - by one's own action (karma)

(noun)

Instrumental, neuter, singular of svakarma

svakarma - one's own action, one's own duty (karma)

Compound type : tatpuruṣa (sva+karma)

• sva – one's own
  pronoun (masculine)
• karma – action, deed, work (karma)
  noun (neuter)
  Root: kṛ (class 8)

निजवेदनजेन (nijavedanajena) - by that which is born from one's own knowledge/understanding

(adjective)

Instrumental, neuter, singular of nijavedanaja

nijavedanaja - born from one's own knowledge/understanding

Compound type : tatpuruṣa (nija+vedana+ja)

• nija – one's own, intrinsic
  adjective (masculine)
• vedana – knowledge, perception, understanding
  noun (neuter)
  Root: vid (class 2)
• ja – born, produced from
  adjective (masculine)
  Root: jan (class 4)

Note: Agrees with svakarmaṇā

एव (eva) - indeed, only, very

(indeclinable)

सिद्धिः (siddhiḥ) - success, accomplishment, attainment, perfection

(noun)

Nominative, feminine, singular of siddhi

siddhi - success, accomplishment, perfection, magical power

Root: sidh (class 4)

भवति (bhavati) - occurs, happens, becomes

(verb)

3rd person , singular, active, present (laṭ) of bhū

Root: bhū (class 1)

न (na) - not, no

(indeclinable)

अन्यथा (anyathā) - otherwise, in another way

(indeclinable)