योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-22, verse-50

त्रेतायां द्वापरे चैव संस्मरामि मुनीश्वर ।
अदृष्टवेदवेदार्थान्स्वसंकेतविहारिणः ॥ ५० ॥

tretāyāṃ dvāpare caiva saṃsmarāmi munīśvara ,
adṛṣṭavedavedārthānsvasaṃketavihāriṇaḥ 50

50. tretāyām dvāpare ca eva saṃsmarāmi munīśvara
| adṛṣṭavedavedārthān svasaṃketavihāriṇaḥ ||

50. munīśvara,
aham tretāyām dvāpare ca eva adṛṣṭavedavedārthān svasaṃketavihāriṇaḥ saṃsmarāmi.

50. O lord of sages (munīśvara), I also recall (even) in the Tretā and Dvāpara Yugas, those who had not perceived the true meaning of the Vedas and who acted according to their own conventions.

Words meanings summery:

• त्रेतायाम् (tretāyām) - in the Tretā Yuga

• द्वापरे (dvāpare) - in the Dvāpara Yuga

• च (ca) - and, also

• एव (eva) - indeed, certainly, only, even

• संस्मरामि (saṁsmarāmi) - I remember well, I recall thoroughly

• मुनीश्वर (munīśvara) - O lord of sages, O chief of ascetics

• अदृष्टवेदवेदार्थान् (adṛṣṭavedavedārthān) - those who have not seen/understood the meaning of the Vedas

• स्वसंकेतविहारिणः (svasaṁketavihāriṇaḥ) - those who act according to their own conventions/impulses

Words meanings and morphology

त्रेतायाम् (tretāyām) - in the Tretā Yuga

(proper noun)

Locative, feminine, singular of tretā

tretā - the Tretā Yuga (the second of the four ages), a group of three

द्वापरे (dvāpare) - in the Dvāpara Yuga

(proper noun)

Locative, masculine, singular of dvāpara

dvāpara - the Dvāpara Yuga (the third of the four ages), second of two

च (ca) - and, also

(indeclinable)

एव (eva) - indeed, certainly, only, even

(indeclinable)

संस्मरामि (saṁsmarāmi) - I remember well, I recall thoroughly

(verb)

1st person , singular, active, present indicative (laṭ) of saṃsmṛ

Prefix: sam

Root: smṛ (class 1)

मुनीश्वर (munīśvara) - O lord of sages, O chief of ascetics

(proper noun)

Vocative, masculine, singular of munīśvara

munīśvara - lord of sages, chief of ascetics

Compound type : tatpuruṣa (muni+īśvara)

• muni – sage, ascetic, silent one
  noun (masculine)
• īśvara – lord, master, ruler, god
  noun (masculine)

अदृष्टवेदवेदार्थान् (adṛṣṭavedavedārthān) - those who have not seen/understood the meaning of the Vedas

(adjective)

Accusative, masculine, plural of adṛṣṭavedavedārtha

adṛṣṭavedavedārtha - one for whom the meaning of the Veda is not seen/understood

Compound type : bahuvrīhi (a+dṛṣṭa+veda+artha)

• a – not, un-
  indeclinable
• dṛṣṭa – seen, perceived, understood, observed
  participle (masculine)
  Past Passive Participle
  Root: dṛś (class 1)
• veda – sacred knowledge, Veda
  proper noun (masculine)
  Root: vid (class 2)
• artha – meaning, purpose, object, wealth
  noun (masculine)

स्वसंकेतविहारिणः (svasaṁketavihāriṇaḥ) - those who act according to their own conventions/impulses

(adjective)

Accusative, masculine, plural of svasaṃketavihārin

svasaṁketavihārin - one who acts according to one's own conventions or purposes

Agent Noun

Compound type : tatpuruṣa (sva+saṃketa+vihārin)

• sva – own, one's own, self
  adjective
• saṃketa – agreement, convention, sign, indication, intention, purpose
  noun (masculine)
  Prefix: sam
  Root: kit (class 10)
• vihārin – one who roams, dwells, acts, sports, enjoys
  adjective (masculine)
  Agent Noun
  Prefix: vi
  Root: hṛ (class 1)