योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-55, verse-4

केवलं वातसंरोधाद्यदा स्पन्दः प्रशाम्यति ।
मृत इत्युच्यते देहस्तदासौ जडनामकः ॥ ४ ॥

kevalaṃ vātasaṃrodhādyadā spandaḥ praśāmyati ,
mṛta ityucyate dehastadāsau jaḍanāmakaḥ 4

4. kevalaṃ vāta-saṃrodhāt yadā spandaḥ praśāmyati
mṛtaḥ iti ucyate dehaḥ tadā asau jaḍa-nāmakaḥ

4. yadā vāta-saṃrodhāt kevalaṃ spandaḥ praśāmyati,
tadā dehaḥ mṛtaḥ iti ucyate,
asau jaḍa-nāmakaḥ (bhavati).

4. When the body's pulsation ceases merely due to the obstruction of breath, it is then called 'dead' and designated as 'inert'.

Words meanings summery:

• केवलं (kevalaṁ) - merely, solely, only

• वात-संरोधात् (vāta-saṁrodhāt) - from the obstruction of wind/breath

• यदा (yadā) - when

• स्पन्दः (spandaḥ) - pulsation, vibration, movement

• प्रशाम्यति (praśāmyati) - ceases, calms down

• मृतः (mṛtaḥ) - dead, deceased

• इति (iti) - thus, so

• उच्यते (ucyate) - is said, is called

• देहः (dehaḥ) - body

• तदा (tadā) - then, at that time

• असौ (asau) - this (body) (that, this (referring to something distant or previously mentioned))

• जड-नामकः (jaḍa-nāmakaḥ) - named inert, called inanimate

Words meanings and morphology

केवलं (kevalaṁ) - merely, solely, only

(indeclinable)

Note: Adverbial accusative.

वात-संरोधात् (vāta-saṁrodhāt) - from the obstruction of wind/breath

(noun)

Ablative, masculine, singular of vāta-saṃrodha

vāta-saṁrodha - obstruction of breath/wind

Compound type : tatpurusha (vāta+saṃrodha)

• vāta – wind, breath
  noun (masculine)
  Root: vā (class 2)
• saṃrodha – obstruction, suppression
  noun (masculine)
  Prefix: sam
  Root: rudh (class 7)

यदा (yadā) - when

(indeclinable)

स्पन्दः (spandaḥ) - pulsation, vibration, movement

(noun)

Nominative, masculine, singular of spanda

spanda - pulsation, vibration, movement

Root: spand (class 1)

प्रशाम्यति (praśāmyati) - ceases, calms down

(verb)

3rd person , singular, active, present (laṭ) of praśām

Prefix: pra

Root: śam (class 4)

मृतः (mṛtaḥ) - dead, deceased

(adjective)

Nominative, masculine, singular of mṛta

mṛta - dead, deceased

Past Passive Participle

Derived from root mṛ

Root: mṛ (class 6)

इति (iti) - thus, so

(indeclinable)

उच्यते (ucyate) - is said, is called

(verb)

3rd person , singular, passive, present (laṭ) of vac

Root: vac (class 2)

देहः (dehaḥ) - body

(noun)

Nominative, masculine, singular of deha

deha - body

Root: dih (class 4)

तदा (tadā) - then, at that time

(indeclinable)

असौ (asau) - this (body) (that, this (referring to something distant or previously mentioned))

(pronoun)

Nominative, masculine, singular of adas

adas - that, this

जड-नामकः (jaḍa-nāmakaḥ) - named inert, called inanimate

(adjective)

Nominative, masculine, singular of jaḍa-nāmaka

jaḍa-nāmaka - named inert, called inanimate

Compound type : karmadhāraya (jaḍa+nāmaka)

• jaḍa – inert, inanimate, dull
  adjective
• nāmaka – named, called, bearing the name of
  adjective
  Derived from nāman (name) with suffix -ka.
  Root: nāman