योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-143, verse-19

अग्न्यौष्ण्ययोरिव तथा वातस्पन्दनयोरिव ।
द्रवाम्भसोरिवाऽऽवीचि वा शैत्यानिलयोरिव ॥ १९ ॥

agnyauṣṇyayoriva tathā vātaspandanayoriva ,
dravāmbhasorivā''vīci vā śaityānilayoriva 19

19. agni-auṣṇyayoḥ iva tathā vāta-spandanayoḥ iva
drava-ambhasoḥ iva vā āvīci vā śaitya-anilayoḥ iva

19. tathā agni-auṣṇyayoḥ iva vāta-spandanayoḥ iva
drava-ambhasoḥ iva vā āvīci vā śaitya-anilayoḥ iva

19. Similarly, just as there is no difference between fire and its heat, or between wind and its movement, or between water and its fluidity, or continuous waves, or between coldness and air.

Words meanings summery:

• अग्नि-औष्ण्ययोः (agni-auṣṇyayoḥ) - of fire and heat

• इव (iva) - like, as, just as

• तथा (tathā) - similarly, thus

• वात-स्पन्दनयोः (vāta-spandanayoḥ) - of wind and movement

• इव (iva) - like, as, just as

• द्रव-अम्भसोः (drava-ambhasoḥ) - of fluidity and water

• इव (iva) - like, as, just as

• वा (vā) - or

• आवीचि (āvīci) - continuous wave, wave after wave

• वा (vā) - or

• शैत्य-अनिलयोः (śaitya-anilayoḥ) - of coldness and air

• इव (iva) - like, as, just as

Words meanings and morphology

अग्नि-औष्ण्ययोः (agni-auṣṇyayoḥ) - of fire and heat

(noun)

Genitive, masculine, dual of agni-auṣṇya

agni-auṣṇya - fire and heat

Compound type : dvandva (agni+auṣṇya)

• agni – fire
  noun (masculine)
• auṣṇya – heat, warmth
  noun (neuter)

इव (iva) - like, as, just as

(indeclinable)

तथा (tathā) - similarly, thus

(indeclinable)

वात-स्पन्दनयोः (vāta-spandanayoḥ) - of wind and movement

(noun)

Genitive, masculine, dual of vāta-spandana

vāta-spandana - wind and movement

Compound type : dvandva (vāta+spandana)

• vāta – wind, air
  noun (masculine)
• spandana – throbbing, trembling, movement
  noun (neuter)
  Root: spand (class 1)

इव (iva) - like, as, just as

(indeclinable)

द्रव-अम्भसोः (drava-ambhasoḥ) - of fluidity and water

(noun)

Genitive, neuter, dual of drava-ambhas

drava-ambhas - fluidity and water

Compound type : dvandva (drava+ambhas)

• drava – liquid, fluid, fluidity
  noun (neuter)
  Root: dru (class 1)
• ambhas – water
  noun (neuter)

इव (iva) - like, as, just as

(indeclinable)

वा (vā) - or

(indeclinable)

आवीचि (āvīci) - continuous wave, wave after wave

(noun)

Nominative, feminine, singular of āvīci

āvīci - continuous wave, wave after wave, up to a wave

Compound type : avyayībhāva (ā+vīci)

• ā – up to, fully, completely
  indeclinable
• vīci – wave, ripple
  noun (feminine)

वा (vā) - or

(indeclinable)

शैत्य-अनिलयोः (śaitya-anilayoḥ) - of coldness and air

(noun)

Genitive, masculine, dual of śaitya-anila

śaitya-anila - coldness and air

Compound type : dvandva (śaitya+anila)

• śaitya – coldness, coolness
  noun (neuter)
• anila – air, wind
  noun (masculine)

इव (iva) - like, as, just as

(indeclinable)