महाभारतः mahābhārataḥ - book-14, chapter-42, verse-37

वैश्वदेवी मनःपूर्वा वागध्यात्ममिहोच्यते ।
वक्तव्यमधिभूतं च वह्निस्तत्राधिदैवतम् ॥३७॥

37. vaiśvadevī manaḥpūrvā vāgadhyātmamihocyate ,
vaktavyamadhibhūtaṁ ca vahnistatrādhidaivatam.

37. vaiśvadevī manaḥpūrvā vāk adhyātmam iha ucyate
vaktavyam adhibhūtam ca vahniḥ tatra adhidaivatam

37. Here, speech (vāk), which is universal and mind-preceded, is called the internal faculty (adhyātma). That which is to be spoken is its material aspect (adhibhūtam), and Vahni is its presiding deity.

Words meanings summery:

• वैश्वदेवी (vaiśvadevī) - universal (relating to universal deities/principles) (belonging to Viśvedevas, universal, relating to all deities)

• मनःपूर्वा (manaḥpūrvā) - mind-preceded, originating from the mind (preceded by the mind, mind-first)

• वाक् (vāk) - speech (speech, voice, word)

• अध्यात्मम् (adhyātmam) - the internal faculty (regarding the self) (pertaining to the self, spiritual, internal faculty)

• इह (iha) - here (in this discussion/treatise) (here, in this world, in this context)

• उच्यते (ucyate) - is called (is said, is called, is declared)

• वक्तव्यम् (vaktavyam) - that which is to be spoken (that which is to be spoken, worthy of being spoken, speech)

• अधिभूतम् (adhibhūtam) - the material aspect (pertaining to material existence, physical aspect, elemental)

• च (ca) - and (and, also)

• वह्निः (vahniḥ) - Vahni (the deity Agni, fire) (fire, Agni, carrier, vehicle)

• तत्र (tatra) - in that (context/aspect) (there, in that place, in that case)

• अधिदैवतम् (adhidaivatam) - the presiding deity (presiding deity, pertaining to the deities)

Words meanings and morphology

वैश्वदेवी (vaiśvadevī) - universal (relating to universal deities/principles) (belonging to Viśvedevas, universal, relating to all deities)

(adjective)

Nominative, feminine, singular of vaiśvadeva

vaiśvadeva - relating to the Viśvedevas (all gods), universal

From viśva + deva + aṇ

मनःपूर्वा (manaḥpūrvā) - mind-preceded, originating from the mind (preceded by the mind, mind-first)

(adjective)

Nominative, feminine, singular of manaḥpūrva

manaḥpūrva - preceded by the mind, having the mind as first or principal

Compound of manas and pūrva

Compound type : karmadhāraya (manas+pūrva)

• manas – mind, intellect, thought, heart
  noun (neuter)
  Root: man (class 4)
• pūrva – prior, former, earlier, preceded by
  adjective (masculine)

वाक् (vāk) - speech (speech, voice, word)

(noun)

Nominative, feminine, singular of vāc

vāc - speech, voice, word, goddess Sarasvatī

From root vac (to speak)

Root: vac (class 2)

अध्यात्मम् (adhyātmam) - the internal faculty (regarding the self) (pertaining to the self, spiritual, internal faculty)

(noun)

Accusative, neuter, singular of adhyātman

adhyātman - the supreme spirit, the individual soul, pertaining to the self or spirit

From adhi- + ātman

इह (iha) - here (in this discussion/treatise) (here, in this world, in this context)

(indeclinable)

उच्यते (ucyate) - is called (is said, is called, is declared)

(verb)

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

Passive voice, present tense, 3rd person singular

Root vac changes to uc in passive forms.

Root: vac (class 2)

वक्तव्यम् (vaktavyam) - that which is to be spoken (that which is to be spoken, worthy of being spoken, speech)

(adjective)

Nominative, neuter, singular of vaktavya

vaktavya - to be spoken, fit to be spoken, that which should be said

Gerundive (kṛtya)

Derived from root 'vac' (to speak) + suffix '-tavya'

Root: vac (class 2)

अधिभूतम् (adhibhūtam) - the material aspect (pertaining to material existence, physical aspect, elemental)

(noun)

Nominative, neuter, singular of adhibhūta

adhibhūta - pertaining to the elements, pertaining to created beings, material existence

From adhi- + bhūta

च (ca) - and (and, also)

(indeclinable)

वह्निः (vahniḥ) - Vahni (the deity Agni, fire) (fire, Agni, carrier, vehicle)

(proper noun)

Nominative, masculine, singular of vahni

vahni - fire, Agni (the fire god), carrier, vehicle, horse

From root vah (to carry)

Root: vah (class 1)

तत्र (tatra) - in that (context/aspect) (there, in that place, in that case)

(indeclinable)

Derived from 'tad' (that) + suffix 'tra' (place/state)

अधिदैवतम् (adhidaivatam) - the presiding deity (presiding deity, pertaining to the deities)

(noun)

Nominative, neuter, singular of adhidaivata

adhidaivata - the supreme divinity, presiding deity, pertaining to deities

From adhi- + daivata