योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-76, verse-23

ब्रह्मलोकस्थनाथेषु ब्रह्मलोकपुरेषु च ।
साङ्गनाबालवृद्धेषु दग्धेषु निपतत्सु खम् ॥ २३ ॥

brahmalokasthanātheṣu brahmalokapureṣu ca ,
sāṅganābālavṛddheṣu dagdheṣu nipatatsu kham 23

23. brahma-loka-stha-nātheṣu brahma-loka-pureṣu ca
sa-aṅganā-bāla-vṛddheṣu dagdheṣu nipatatsu kham

23. brahma-loka-stha-nātheṣu ca brahma-loka-pureṣu
sa-aṅganā-bāla-vṛddheṣu dagdheṣu kham nipatatsu

23. When the protectors residing in Brahmaloka (the realm of brahman), and the cities of Brahmaloka, along with their women, children, and elders, were burnt and fell through the sky.

Words meanings summery:

• ब्रह्म-लोक-स्थ-नाथेषु (brahma-loka-stha-nātheṣu) - in the masters/protectors residing in Brahmaloka

• ब्रह्म-लोक-पुरेषु (brahma-loka-pureṣu) - in the cities of Brahmaloka

• च (ca) - and

• स-अङ्गना-बाल-वृद्धेषु (sa-aṅganā-bāla-vṛddheṣu) - along with women, children, and old people

• दग्धेषु (dagdheṣu) - in those who are burnt

• निपतत्सु (nipatatsu) - in those falling down, in those descending

• खम् (kham) - sky, space, void

Words meanings and morphology

ब्रह्म-लोक-स्थ-नाथेषु (brahma-loka-stha-nātheṣu) - in the masters/protectors residing in Brahmaloka

(noun)

Locative, masculine, plural of brahma-loka-stha-nātha

brahma-loka-stha-nātha - master/protector residing in Brahmaloka

Compound type : tatpuruṣa (brahman+loka+stha+nātha)

• brahman – Brahman (the absolute reality), sacred word
  noun (neuter)
• loka – world, realm
  noun (masculine)
• stha – residing, standing, situated
  adjective (masculine)
  Kṛt suffix (kha)
  from root 'sthā' (to stand)
  Root: sthā (class 1)
• nātha – lord, master, protector
  noun (masculine)

Note: Refers to the inhabitants/rulers of Brahmaloka

ब्रह्म-लोक-पुरेषु (brahma-loka-pureṣu) - in the cities of Brahmaloka

(noun)

Locative, neuter, plural of brahma-loka-pura

brahma-loka-pura - city of Brahmaloka

Compound type : tatpuruṣa (brahman+loka+pura)

• brahman – Brahman (the absolute reality), sacred word
  noun (neuter)
• loka – world, realm
  noun (masculine)
• pura – city, fortress
  noun (neuter)

च (ca) - and

(indeclinable)

Note: Conjunction

स-अङ्गना-बाल-वृद्धेषु (sa-aṅganā-bāla-vṛddheṣu) - along with women, children, and old people

(adjective)

Locative, masculine, plural of sa-aṅganā-bāla-vṛddha

sa-aṅganā-bāla-vṛddha - accompanied by women, children, and old people

Bahuvrihi compound 'saha aṅganābhiḥ bālaiḥ vṛddhaiḥ ca ye te'

Compound type : bahuvrīhi (saha+aṅganā+bāla+vṛddha)

• saha – with, together with
  indeclinable
• aṅganā – woman
  noun (feminine)
• bāla – child, young
  noun (masculine)
• vṛddha – old, aged; an old person
  adjective (masculine)
  Past Passive Participle
  from root 'vṛdh' (to grow, increase)
  Root: vṛdh (class 1)

Note: Qualifies 'nātheṣu' and 'pureṣu' implicitly, referring to the inhabitants

दग्धेषु (dagdheṣu) - in those who are burnt

(adjective)

Locative, masculine, plural of dagdha

dagdha - burnt, consumed by fire

Past Passive Participle

from root 'dah' (to burn)

Root: dah (class 1)

Note: Qualifies 'nātheṣu' and 'pureṣu' (implicitly, referring to the beings/structures within them)

निपतत्सु (nipatatsu) - in those falling down, in those descending

(adjective)

Locative, masculine, plural of nipatata

nipatata - falling down, descending

Present Active Participle

from root 'pat' (to fall) with upasarga 'ni'

Prefix: ni

Root: pat (class 1)

Note: Qualifies 'nātheṣu' and 'pureṣu'

खम् (kham) - sky, space, void

(noun)

Accusative, neuter, singular of kha

kha - sky, space, void

Note: Object of 'nipatatsu', indicating direction of falling.