योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-75, verse-3

निरञ्जनतया बुद्धो जनतां पालयंश्चिरम् ।
जीवन्मुक्ताकृतिर्नित्यं मनू राज्यमपालयत् ॥ ३ ॥

nirañjanatayā buddho janatāṃ pālayaṃściram ,
jīvanmuktākṛtirnityaṃ manū rājyamapālayat 3

3. nirañjanatayā buddhaḥ janatām pālayan ciram
jīvanmukta-ākṛtiḥ nityam manū rājyam apālayat

3. manū nirañjanatayā buddhaḥ nityam
jīvanmukta-ākṛtiḥ janatām ciram rājyam apālayat

3. Manu, enlightened and unblemished, ruled the people for a long time. Eternally embodying the form of one liberated while living (jīvanmukta), he governed his kingdom.

Words meanings summery:

• निरञ्जनतया (nirañjanatayā) - by being unblemished, by being pure, by being undefiled

• बुद्धः (buddhaḥ) - enlightened one, awakened one

• जनताम् (janatām) - the people, mankind, population

• पालयन् (pālayan) - protecting, ruling, governing

• चिरम् (ciram) - for a long time, long

• जीवन्मुक्त-आकृतिः (jīvanmukta-ākṛtiḥ) - having the form/nature of one liberated while living

• नित्यम् (nityam) - constantly, eternally, always

• मनू (manū) - Manu (a legendary progenitor of humanity, and a wise ruler)

• राज्यम् (rājyam) - kingdom, realm, dominion

• अपालयत् (apālayat) - ruled, protected, governed

Words meanings and morphology

निरञ्जनतया (nirañjanatayā) - by being unblemished, by being pure, by being undefiled

(noun)

Instrumental, feminine, singular of nirañjanatā

nirañjanatā - state of being unblemished, purity, undefiled nature

Derived from nirañjana (unblemished) + tā (suffix forming abstract noun)

Compound type : Tatpuruṣa (nir+añjana+tā)

• nir – without, free from
  prefix
• añjana – blemish, stain, black ointment
  noun (neuter)
  Root: añj (class 7)
• tā – state, condition (suffix forming abstract noun)
  suffix (feminine)

बुद्धः (buddhaḥ) - enlightened one, awakened one

(noun)

Nominative, masculine, singular of buddha

buddha - awakened, enlightened; an enlightened person

Past Passive Participle

From root budh + kta (passive participle suffix)

Root: budh (class 1)

जनताम् (janatām) - the people, mankind, population

(noun)

Accusative, feminine, singular of janatā

janatā - people, humanity, multitude of living beings

पालयन् (pālayan) - protecting, ruling, governing

(participle)

Nominative, masculine, singular of pālayat

pālayat - protecting, cherishing, ruling

Present Active Participle

From causative root pālay- (from pāl) + śatṛ (present active participle suffix)

Root: pāl (class 10)

चिरम् (ciram) - for a long time, long

(indeclinable)

Note: Adverbial use

जीवन्मुक्त-आकृतिः (jīvanmukta-ākṛtiḥ) - having the form/nature of one liberated while living

(noun)

Nominative, masculine, singular of jīvanmukta-ākṛti

jīvanmukta-ākṛti - form/nature of a jīvanmukta (liberated while living)

Compound type : Tatpuruṣa (jīvanmukta+ākṛti)

• jīvanmukta – one who is liberated while living
  noun (masculine)
  Compound of Present Active Participle 'jīvan' and Past Passive Participle 'mukta'
• ākṛti – form, shape, appearance, nature
  noun (feminine)
  From root kṛ with prefix ā
  Prefix: ā
  Root: kṛ (class 8)

नित्यम् (nityam) - constantly, eternally, always

(indeclinable)

मनू (manū) - Manu (a legendary progenitor of humanity, and a wise ruler)

(proper noun)

Nominative, masculine, singular of manu

manu - Manu, human, man

राज्यम् (rājyam) - kingdom, realm, dominion

(noun)

Accusative, neuter, singular of rājya

rājya - kingdom, reign, government

Root: rāj (class 1)

अपालयत् (apālayat) - ruled, protected, governed

(verb)

3rd person , singular, active, past imperfect (laṅ) of pāl

Causative form of root pāl, often treated as Dhātu Class 10

Root: pāl (class 10)