योगवासिष्ठः yogavāsiṣṭhaḥ - book-1, chapter-32, verse-21

निरभ्रोत्पलसंकाशव्योमवृष्टिरनाकुला ।
अदृष्टपूर्वा सर्वस्य जनस्य जनितस्मया ॥ २१ ॥

nirabhrotpalasaṃkāśavyomavṛṣṭiranākulā ,
adṛṣṭapūrvā sarvasya janasya janitasmayā 21

21. nirabhrotpalasaṃkāśavyomavṛṣṭiḥ anākulā
adṛṣṭapūrvā sarvasya janasya janitasmayā

21. nirabhrotpalasaṃkāśavyomavṛṣṭiḥ anākulā
adṛṣṭapūrvā sarvasya janasya janitasmayā

21. This was an unperturbed rain, originating from a cloudless sky and resembling blue lotuses. It was an unprecedented sight for everyone and generated great astonishment.

Words meanings summery:

• निरभ्रोत्पलसंकाशव्योमवृष्टिः (nirabhrotpalasaṁkāśavyomavṛṣṭiḥ) - rain from a cloudless sky resembling blue lotuses

• अनाकुला (anākulā) - flowing steadily, perfectly formed (referring to the lotus-like rain drops) (undisturbed, unperturbed, orderly, continuous)

• अदृष्टपूर्वा (adṛṣṭapūrvā) - unprecedented, never seen before

• सर्वस्य (sarvasya) - of all, of every

• जनस्य (janasya) - of the people, of the person

• जनितस्मया (janitasmayā) - causing wonder, generating astonishment

Words meanings and morphology

निरभ्रोत्पलसंकाशव्योमवृष्टिः (nirabhrotpalasaṁkāśavyomavṛṣṭiḥ) - rain from a cloudless sky resembling blue lotuses

(noun)

Nominative, feminine, singular of nirabhrotpalasaṃkāśavyomavṛṣṭi

nirabhrotpalasaṁkāśavyomavṛṣṭi - rain from a cloudless sky, resembling blue lotuses

Complex descriptive compound. vṛṣṭi is the head noun.

Compound type : Karmadhāraya (nirabhra+utpala+saṃkāśa+vyoman+vṛṣṭi)

• nirabhra – cloudless, clear sky
  adjective
  From nis (without) + abhra (cloud).
  Prefix: nis
• utpala – (blue) lotus, water-lily
  noun (neuter)
• saṃkāśa – resembling, similar to, appearing like
  adjective
  From sam + √kāś (to appear).
  Prefix: sam
  Root: √kāś (class 1)
• vyoman – sky, atmosphere, ether
  noun (neuter)
• vṛṣṭi – rain, shower
  noun (feminine)
  From √vṛṣ (to rain) + kti suffix.
  Root: √vṛṣ (class 1)

अनाकुला (anākulā) - flowing steadily, perfectly formed (referring to the lotus-like rain drops) (undisturbed, unperturbed, orderly, continuous)

(adjective)

Nominative, feminine, singular of anākula

anākula - undisturbed, calm, tranquil, not confused, orderly

From an (not) + ākula (confused, disturbed).

अदृष्टपूर्वा (adṛṣṭapūrvā) - unprecedented, never seen before

(adjective)

Nominative, feminine, singular of adṛṣṭapūrva

adṛṣṭapūrva - not seen before, unprecedented

Past Passive Participle (for dṛṣṭa)

Compound. adṛṣṭa (unseen) + pūrva (before). Feminine -ā ending.

Compound type : Nañ-tatpuruṣa (adṛṣṭa+pūrva)

• adṛṣṭa – unseen, invisible
  adjective
  Past Passive Participle
  From a (not) + √dṛś (to see) + kta suffix.
  Root: √dṛś (class 1)
• pūrva – former, prior, before
  adjective

सर्वस्य (sarvasya) - of all, of every

(pronoun)

Genitive, masculine/neuter, singular of sarva

sarva - all, every, whole, complete

जनस्य (janasya) - of the people, of the person

(noun)

Genitive, masculine, singular of jana

jana - person, man, people, creature

From √jan (to be born).

Root: √jan (class 4)

जनितस्मया (janitasmayā) - causing wonder, generating astonishment

(adjective)

Nominative, feminine, singular of janitasmaya

janitasmaya - causing wonder, generating astonishment/pride

Past Passive Participle (for janita)

Compound. janita (produced/caused) + smaya (wonder/astonishment). Feminine -ā ending.

Compound type : Bahuvrīhi (janita+smaya)

• janita – caused, produced, born
  adjective
  Past Passive Participle
  From √jan (to be born, produce) in causative (janayati) + kta suffix.
  Root: √jan (class 4)
• smaya – wonder, astonishment, pride, smile
  noun (masculine)
  From √smi (to smile).
  Root: √smi (class 1)