योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-78, verse-10

ततो ददृशतुस्तां तौ शब्दपूरितदिग्गणाम् ।
साट्टहासप्रभापिण्डपूरप्रकटिताकृतिम् ॥ १० ॥

tato dadṛśatustāṃ tau śabdapūritadiggaṇām ,
sāṭṭahāsaprabhāpiṇḍapūraprakaṭitākṛtim 10

10. tataḥ dadṛśatuḥ tām tau śabdapūritadiggaṇām
sāṭṭahāsaprabhāpiṇḍapūraprakaṭitākṛtim

10. tataḥ tau tām dadṛśatuḥ,
yā śabdapūritadiggaṇām āsīt,
sāṭṭahāsaprabhāpiṇḍapūraprakaṭitākṛtim āsīt ca.

10. Then those two saw her, who filled all directions with sound, her form revealed by the fullness of the mass of light from her loud laughter.

Words meanings summery:

• ततः (tataḥ) - indicates sequence in time. (then, thence, from that)

• ददृशतुः (dadṛśatuḥ) - Refers to the two persons seeing the goddess. (those two saw)

• ताम् (tām) - refers to the goddess. (her, that (feminine))

• तौ (tau) - Refers to the two persons (likely male) who are the subject of the verb dadṛśatuḥ. (those two (masculine))

• शब्दपूरितदिग्गणाम् (śabdapūritadiggaṇām) - Describes the impressive presence of the goddess. (filling all directions with sound)

• साट्टहासप्रभापिण्डपूरप्रकटिताकृतिम् (sāṭṭahāsaprabhāpiṇḍapūraprakaṭitākṛtim) - Describes the awe-inspiring and radiant manifestation of the goddess. (whose form was manifested by the abundance of light from her loud laughter)

Words meanings and morphology

ततः (tataḥ) - indicates sequence in time. (then, thence, from that)

(indeclinable)

Adverb derived from 'tad'.

ददृशतुः (dadṛśatuḥ) - Refers to the two persons seeing the goddess. (those two saw)

(verb)

3rd person , dual, active, perfect (liṭ) of dṛś

perfect tense (reduplicated)

Reduplicated root, perfect tense (liṭ).

Root: dṛś (class 1)

ताम् (tām) - refers to the goddess. (her, that (feminine))

(pronoun)

Accusative, feminine, singular of tad

tad - that, he, she, it

Feminine accusative singular.

तौ (tau) - Refers to the two persons (likely male) who are the subject of the verb dadṛśatuḥ. (those two (masculine))

(pronoun)

Nominative, masculine, dual of tad

tad - that, he, she, it

Masculine nominative dual.

शब्दपूरितदिग्गणाम् (śabdapūritadiggaṇām) - Describes the impressive presence of the goddess. (filling all directions with sound)

(adjective)

Accusative, feminine, singular of śabdapūritadiggaṇā

śabdapūritadiggaṇā - filling the quarters/directions with sound

Compound.

Compound type : bahuvrīhi (śabda+pūrita+diggaṇa)

• śabda – sound, noise, word
  noun (masculine)
  Root: śabd
• pūrita – filled, full, completed
  verbal adjective (neuter)
  Past Passive Participle
  From root 'pṛ' (to fill) in causative.
  Root: pṛ
• diggaṇa – group of directions, all directions
  noun (feminine)

Note: Qualifies 'tām'.

साट्टहासप्रभापिण्डपूरप्रकटिताकृतिम् (sāṭṭahāsaprabhāpiṇḍapūraprakaṭitākṛtim) - Describes the awe-inspiring and radiant manifestation of the goddess. (whose form was manifested by the abundance of light from her loud laughter)

(adjective)

Accusative, feminine, singular of sāṭṭahāsaprabhāpiṇḍapūraprakaṭitākṛti

sāṭṭahāsaprabhāpiṇḍapūraprakaṭitākṛti - one whose form is made manifest by the fullness of the mass of light from (her) loud laughter

Long compound.

Compound type : bahuvrīhi (sa+aṭṭahāsa+prabhā+piṇḍa+pūra+prakaṭita+ākṛti)

• sa – with, accompanied by
  indeclinable
• aṭṭahāsa – loud laughter, boisterous laughter
  noun (masculine)
  Prefix: ā
  Root: has
• prabhā – light, radiance, splendor
  noun (feminine)
  From root 'bhā' with prefix 'pra'.
  Prefix: pra
  Root: bhā
• piṇḍa – lump, mass, heap, body
  noun (masculine)
• pūra – fullness, abundance, flood
  noun (masculine)
  From root 'pṛ' (to fill).
  Root: pṛ
• prakaṭita – manifested, revealed, made evident
  verbal adjective (neuter)
  Past Passive Participle
  From root 'kaṭ' with prefixes 'pra' and 'vi'.
  Prefix: pra
  Root: kaṭ
• ākṛti – form, shape, appearance, figure
  noun (feminine)
  From root 'kṛ' with prefix 'ā'.
  Prefix: ā
  Root: kṛ

Note: Qualifies 'tām'.