योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-21, verse-19

जगद्गलितमेर्वादि यात्येकार्णवतां यदा ।
वायवीं धारणां बद्ध्वा संप्लवेऽचलधीस्तदा ॥ १९ ॥

jagadgalitamervādi yātyekārṇavatāṃ yadā ,
vāyavīṃ dhāraṇāṃ baddhvā saṃplave'caladhīstadā 19

19. jagat galitameruvādi yāti ekārṇavatām yadā
vāyavīm dhāraṇām baddhvā samplave acaladhīḥ tadā

19. yadā jagat galitameruvādi ekārṇavatām yāti tadā
vāyavīm dhāraṇām baddhvā acaladhīḥ samplave

19. When the world, with Mount Meru and others dissolved, reaches the state of a single universal ocean, then I, with an unwavering intellect, float (samplave), having established myself in the aerial meditation (vāyavī dhāraṇā).

Words meanings summery:

• जगत् (jagat) - world, universe, moving

• गलितमेरुवादि (galitameruvādi) - beginning with Meru having dissolved

• याति (yāti) - it goes, it attains, it reaches

• एकार्णवताम् (ekārṇavatām) - the state of a single ocean, the condition of being one ocean

• यदा (yadā) - when

• वायवीम् (vāyavīm) - aerial, meditative absorption related to the air element (aerial, pertaining to wind (Vāyu))

• धारणाम् (dhāraṇām) - mental retention, concentration, meditative absorption

• बद्ध्वा (baddhvā) - having bound, having fixed, having established

• सम्प्लवे (samplave) - I float, I swim, I merge

• अचलधीः (acaladhīḥ) - firm-minded, with an unmoving intellect

• तदा (tadā) - then, at that time

Words meanings and morphology

जगत् (jagat) - world, universe, moving

(noun)

Nominative, neuter, singular of jagat

jagat - world, universe, that which moves

Present Active Participle

Root: gam (class 1)

गलितमेरुवादि (galitameruvādi) - beginning with Meru having dissolved

(adjective)

Nominative, neuter, singular of galitameruvādi

galitameruvādi - starting with Meru having dissolved

Compound type : Bahuvrīhi (galita+meru+ādi)

• galita – dissolved, melted, fallen
  adjective (neuter)
  Past Passive Participle
  from gal (to drop, melt)
  Root: gal (class 1)
• meru – a mythical mountain
  proper noun (masculine)
• ādi – beginning, starting with, and so on
  indeclinable

याति (yāti) - it goes, it attains, it reaches

(verb)

3rd person , singular, active, present indicative (lat) of yā

Present Active Indic

3rd Person Singular

Root: yā (class 2)

एकार्णवताम् (ekārṇavatām) - the state of a single ocean, the condition of being one ocean

(noun)

Accusative, feminine, singular of ekārṇavatā

ekārṇavatā - state of being a single ocean/flood

Compound type : Tatpuruṣa (eka+arṇava+tā)

• eka – one, single
  numeral/adjective (masculine)
• arṇava – ocean, sea
  noun (masculine)
• tā – suffix forming abstract nouns, state
  suffix (feminine)

यदा (yadā) - when

(indeclinable)

वायवीम् (vāyavīm) - aerial, meditative absorption related to the air element (aerial, pertaining to wind (Vāyu))

(adjective)

Accusative, feminine, singular of vāyavī

vāyavī - aerial, windy, pertaining to Vāyu

धारणाम् (dhāraṇām) - mental retention, concentration, meditative absorption

(noun)

Accusative, feminine, singular of dhāraṇā

dhāraṇā - retention, concentration, meditation

Root: dhṛ (class 1)

बद्ध्वा (baddhvā) - having bound, having fixed, having established

(indeclinable)

Absolutive (Gerund)

Root: bandh (class 1)

सम्प्लवे (samplave) - I float, I swim, I merge

(verb)

1st person , singular, active, present indicative (lat) of sam-plu

Present Active Indic

1st Person Singular

Prefix: sam

Root: plu (class 1)

अचलधीः (acaladhīḥ) - firm-minded, with an unmoving intellect

(adjective)

Nominative, masculine, singular of acaladhī

acaladhī - one whose intellect is unmoving, steadfast mind

Compound type : Bahuvrīhi (acala+dhī)

• acala – unmoving, steady
  adjective (masculine)
• dhī – intellect, thought, mind
  noun (feminine)

तदा (tadā) - then, at that time

(indeclinable)