योगवासिष्ठः yogavāsiṣṭhaḥ - book-2, chapter-11, verse-55

यद्यद्वच्मि तदादेयं हृदि कार्य प्रयत्नतः ।
नोचेत्प्रष्टव्य एवाहं न त्वयेह निरर्थकम् ॥ ५५ ॥

yadyadvacmi tadādeyaṃ hṛdi kārya prayatnataḥ ,
nocetpraṣṭavya evāhaṃ na tvayeha nirarthakam 55

55. yat yat vacmi tat ādeyam hṛdi kāryam prayatnataḥ no
cet praṣṭavyaḥ eva aham na tvayā iha nirarthakam

55. yat yat vacmi tat ādeyam prayatnataḥ hṛdi kāryam no
cet aham eva praṣṭavyaḥ na tvayā iha nirarthakam

55. Whatever I declare, that should be accepted and carefully reflected upon in your heart. Otherwise, I am indeed to be questioned, not disregarded as meaningless by you in this context.

Words meanings summery:

• यत् (yat) - which, what, whatever

• यत् (yat) - which, what, whatever

• वच्मि (vacmi) - I speak, I say

• तत् (tat) - that

• आदेयम् (ādeyam) - to be accepted (to be taken, acceptable, to be received)

• हृदि (hṛdi) - in the heart, in the mind

• कार्यम् (kāryam) - to be reflected upon, to be made (in the heart) (to be done, to be performed, work, duty)

• प्रयत्नतः (prayatnataḥ) - with effort, carefully, diligently

• नो (no) - not

• चेत् (cet) - if

• प्रष्टव्यः (praṣṭavyaḥ) - to be questioned, to be asked

• एव (eva) - indeed, only, just

• अहम् (aham) - I

• न (na) - not, no

• त्वया (tvayā) - by you

• इह (iha) - in this context (here, in this world, in this matter)

• निरर्थकम् (nirarthakam) - as meaningless (uselessly, meaninglessly, without purpose)

Words meanings and morphology

यत् (yat) - which, what, whatever

(pronoun)

Nominative, neuter, singular of yad

yad - which, what, whoever, whatever

यत् (yat) - which, what, whatever

(pronoun)

Nominative, neuter, singular of yad

yad - which, what, whoever, whatever

वच्मि (vacmi) - I speak, I say

(verb)

1st person , singular, active, present (lat) of vac

root verb

2nd conjugation, present tense, 1st person singular

Root: vac (class 2)

तत् (tat) - that

(pronoun)

Nominative, neuter, singular of tad

tad - that, he, she, it

आदेयम् (ādeyam) - to be accepted (to be taken, acceptable, to be received)

(adjective)

Nominative, neuter, singular of ādeya

ādeya - to be taken, acceptable, to be received, proper

Gerundive

formed from root 'dā' (to give) with prefix 'ā' (to, towards)

Prefix: ā

Root: dā (class 3)

हृदि (hṛdi) - in the heart, in the mind

(noun)

Locative, neuter, singular of hṛd

hṛd - heart, mind, soul, interior

कार्यम् (kāryam) - to be reflected upon, to be made (in the heart) (to be done, to be performed, work, duty)

(adjective)

Nominative, neuter, singular of kārya

kārya - to be done, to be performed, work, duty, action

Gerundive

formed from root 'kṛ' (to do, to make)

Root: kṛ (class 8)

प्रयत्नतः (prayatnataḥ) - with effort, carefully, diligently

(indeclinable)

derived from 'prayatna' (effort) with suffix '-tas'

नो (no) - not

(indeclinable)

चेत् (cet) - if

(indeclinable)

Note: Used with 'no' to mean 'otherwise' or 'if not'.

प्रष्टव्यः (praṣṭavyaḥ) - to be questioned, to be asked

(adjective)

Nominative, masculine, singular of praṣṭavya

praṣṭavya - to be questioned, to be asked, suitable for questioning

Gerundive

formed from root 'prach' (to ask) with prefix 'pra'

Prefix: pra

Root: prach (class 6)

एव (eva) - indeed, only, just

(indeclinable)

अहम् (aham) - I

(pronoun)

Nominative, singular of asmad

asmad - I, we

न (na) - not, no

(indeclinable)

त्वया (tvayā) - by you

(pronoun)

Instrumental, singular of yuṣmad

yuṣmad - you

इह (iha) - in this context (here, in this world, in this matter)

(indeclinable)

निरर्थकम् (nirarthakam) - as meaningless (uselessly, meaninglessly, without purpose)

(adjective)

Accusative, neuter, singular of nirarthaka

nirarthaka - useless, meaningless, vain

Compound type : bahuvrīhi (nis+artha+ka)

• nis – without, out, away
  indeclinable
• artha – meaning, purpose, object
  noun (masculine)
• ka – suffix used to form adjectives or nouns, often diminutive or emphasizing
  suffix

Note: Used adverbially here.