योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-54, verse-28

रूढादिसर्गे नियतिर्यैकद्वित्रिचतुःशता ।
पूर्वादिष्वायुषः पुंसां तस्या मे नियतिं श्रृणु ॥ २८ ॥

rūḍhādisarge niyatiryaikadvitricatuḥśatā ,
pūrvādiṣvāyuṣaḥ puṃsāṃ tasyā me niyatiṃ śrṛṇu 28

28. rūḍhādisarge niyatiḥ yā ekadvitricatuḥśatā
pūrvādiṣu āyuṣaḥ puṃsām tasyāḥ me niyatim śṛṇu

28. me tasyāḥ niyatim śṛṇu yā ekadvitricatuḥśatā
niyatiḥ rūḍhādisarge pūrvādiṣu puṃsām āyuṣaḥ

28. Listen from me to that fixed rule (niyati) concerning the life-span (āyuṣ) of beings in the primordial creations and subsequent ones, starting from earlier eras, which [rule] determines life-spans of one, two, three, or four hundred (years) and so on.

Words meanings summery:

• रूढादिसर्गे (rūḍhādisarge) - in the creations beginning with a root (primordial), in original creations etc.

• नियतिः (niyatiḥ) - fixed rule, destiny, fate, necessity

• या (yā) - which (feminine singular nominative)

• एकद्वित्रिचतुःशता (ekadvitricatuḥśatā) - having one, two, three, or four hundred (as its measure or characteristic)

• पूर्वादिषु (pūrvādiṣu) - in the earlier ones, in the former etc.

• आयुषः (āyuṣaḥ) - of life, of duration, of age

• पुंसाम् (puṁsām) - of men, of human beings, of male beings

• तस्याः (tasyāḥ) - of that (feminine), of her

• मे (me) - from me, by me, to me, my

• नियतिम् (niyatim) - fixed rule, destiny, necessity

• शृणु (śṛṇu) - listen! hear!

Words meanings and morphology

रूढादिसर्गे (rūḍhādisarge) - in the creations beginning with a root (primordial), in original creations etc.

(noun)

Locative, masculine, singular of rūḍhādisarga

rūḍhādisarga - creations beginning with an established form or primordial stage

Tatpuruṣa compound

Compound type : tatpuruṣa (rūḍha+ādi+sarga)

• rūḍha – grown, risen, established, traditional, primordial
  adjective
  Past Passive Participle
  Past passive participle of root 'ruh'
  Root: ruh (class 1)
• ādi – beginning, starting with, and so on
  noun (masculine)
• sarga – creation, emission, chapter
  noun (masculine)
  From root 'sṛj'
  Root: sṛj (class 6)

नियतिः (niyatiḥ) - fixed rule, destiny, fate, necessity

(noun)

Nominative, feminine, singular of niyati

niyati - fixed rule, destiny, fate, necessity, restriction

Action noun from root 'yam' with prefix 'ni'

Prefix: ni

Root: yam (class 1)

या (yā) - which (feminine singular nominative)

(pronoun)

Nominative, feminine, singular of yad

yad - which, what

एकद्वित्रिचतुःशता (ekadvitricatuḥśatā) - having one, two, three, or four hundred (as its measure or characteristic)

(adjective)

Nominative, feminine, singular of ekadvitricatuḥśata

ekadvitricatuḥśata - one, two, three, or four hundred (in amount/measure)

Bahuvrīhi or Tatpuruṣa compound referring to a numerical quantity.

Compound type : dvandva (eka+dvi+tri+catur+śata)

• eka – one, single
  numeral
• dvi – two
  numeral
• tri – three
  numeral
• catur – four
  numeral
• śata – hundred
  noun (neuter)

Note: Agrees with 'niyatiḥ'

पूर्वादिषु (pūrvādiṣu) - in the earlier ones, in the former etc.

(noun)

Locative, masculine, plural of pūrvādi

pūrvādi - earlier ones and so forth

Tatpuruṣa compound

Compound type : tatpuruṣa (pūrva+ādi)

• pūrva – former, earlier, prior
  adjective
• ādi – beginning, and so on
  noun (masculine)

आयुषः (āyuṣaḥ) - of life, of duration, of age

(noun)

Genitive, neuter, singular of āyuṣ

āyuṣ - life, life-span, duration, age

पुंसाम् (puṁsām) - of men, of human beings, of male beings

(noun)

Genitive, masculine, plural of puṃs

puṁs - man, human being, male, person

तस्याः (tasyāḥ) - of that (feminine), of her

(pronoun)

Genitive, feminine, singular of tad

tad - that, she, it

Note: Refers to 'niyatiḥ'

मे (me) - from me, by me, to me, my

(pronoun)

singular of mad

mad - I

नियतिम् (niyatim) - fixed rule, destiny, necessity

(noun)

Accusative, feminine, singular of niyati

niyati - fixed rule, destiny, fate, necessity, restriction

Action noun from root 'yam' with prefix 'ni'

Prefix: ni

Root: yam (class 1)

शृणु (śṛṇu) - listen! hear!

(verb)

2nd person , singular, active, imperative (loṭ) of śru

Root: śru (class 5)