योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-5, verse-9

ततश्चतुर्थे कल्पान्ते विवेकस्तस्य चोदभूत् ।
विदूरस्येव वैदूर्यमौचित्याज्जलदोदयात् ॥ ९ ॥

tataścaturthe kalpānte vivekastasya codabhūt ,
vidūrasyeva vaidūryamaucityājjaladodayāt 9

9. tataḥ caturthe kalpānte vivekaḥ tasya ca udabhūt
| vidūrasya iva vaidūryam aucityāt jaladodayāt

9. tataḥ caturthe kalpānte tasya vivekaḥ ca udabhūt
vidūrasya iva vaidūryam aucityāt jaladodayāt

9. Then, at the close of the fourth cosmic cycle (kalpa), discrimination (viveka) arose within him, much like lapis lazuli (vaidūrya) manifests from Mount Vidūra, appropriately, with the arrival of rain clouds.

Words meanings summery:

• ततः (tataḥ) - then, thereafter, from that

• चतुर्थे (caturthe) - in the fourth

• कल्पान्ते (kalpānte) - at the end of the kalpa (cosmic cycle)

• विवेकः (vivekaḥ) - discrimination, discernment, spiritual discretion

• तस्य (tasya) - of him, his

• च (ca) - and

• उदभूत् (udabhūt) - arose, originated

• विदूरस्य (vidūrasya) - Mount Vidūra is a mythical mountain, known for yielding precious gems. (of Vidūra (mountain name))

• इव (iva) - like, as, as it were

• वैदूर्यम् (vaidūryam) - lapis lazuli, beryl (a gemstone)

• औचित्यात् (aucityāt) - due to suitability, due to appropriateness, from proper cause

• जलदोदयात् (jaladodayāt) - from the rise of clouds, from the appearance of rain clouds

Words meanings and morphology

ततः (tataḥ) - then, thereafter, from that

(indeclinable)

चतुर्थे (caturthe) - in the fourth

(adjective)

Locative, masculine, singular of caturtha

caturtha - fourth

Ordinal numeral adjective derived from `catur` (four).

Note: Agrees with `kalpānte`.

कल्पान्ते (kalpānte) - at the end of the kalpa (cosmic cycle)

(noun)

Locative, masculine, singular of kalpānta

kalpānta - end of a kalpa

Compound type : tatpuruṣa (kalpa+anta)

• kalpa – cosmic cycle, aeon, a day of Brahmā
  noun (masculine)
• anta – end, limit, boundary
  noun (masculine)

विवेकः (vivekaḥ) - discrimination, discernment, spiritual discretion

(noun)

Nominative, masculine, singular of viveka

viveka - discrimination, discernment, spiritual discretion; distinguishing truth from illusion

तस्य (tasya) - of him, his

(pronoun)

Genitive, masculine, singular of tad

tad - that, he, she, it

च (ca) - and

(indeclinable)

उदभूत् (udabhūt) - arose, originated

(verb)

3rd person , singular, active, aorist (luṅ) of bhū

Prefix: ut

Root: bhū (class 1)

विदूरस्य (vidūrasya) - Mount Vidūra is a mythical mountain, known for yielding precious gems. (of Vidūra (mountain name))

(proper noun)

Genitive, masculine, singular of vidūra

vidūra - name of a mountain (mythologically associated with beryl/lapis lazuli)

इव (iva) - like, as, as it were

(indeclinable)

वैदूर्यम् (vaidūryam) - lapis lazuli, beryl (a gemstone)

(noun)

Nominative, neuter, singular of vaidūrya

vaidūrya - lapis lazuli, beryl, cat's eye gem (a precious stone, often blue-green)

Derived from `vidūra` (name of a mountain).

औचित्यात् (aucityāt) - due to suitability, due to appropriateness, from proper cause

(noun)

Ablative, neuter, singular of aucitya

aucitya - propriety, fitness, appropriateness, suitability, decorum

Derived from `ucita` (suitable, proper).

जलदोदयात् (jaladodayāt) - from the rise of clouds, from the appearance of rain clouds

(noun)

Ablative, masculine, singular of jaladodaya

jaladodaya - rise/appearance of clouds; onset of rain

Compound type : tatpuruṣa (jalada+udaya)

• jalada – cloud (lit. 'water-giver')
  noun (masculine)
  Compound of `jala` (water) and `da` (giver).
• udaya – rise, ascent, appearance, origin
  noun (masculine)
  Derived from root `i` (to go) with prefix `ud` (up).
  Prefix: ud
  Root: i (class 2)