महाभारतः mahābhārataḥ - book-3, chapter-203, verse-23

अपानोदानयोर्मध्ये प्राणव्यानौ समाहितौ ।
समन्वितस्त्वधिष्ठानं सम्यक्पचति पावकः ॥२३॥

23. apānodānayormadhye prāṇavyānau samāhitau ,
samanvitastvadhiṣṭhānaṁ samyakpacati pāvakaḥ.

23. apānodānayoḥ madhye prāṇavyānau samāhitau |
samanvitaḥ tu adhiṣṭhānam samyak pacati pāvakaḥ

23. Between the apāna and udāna vital breaths, the prāṇa and vyāna (vital breaths) are situated. Indeed, the digestive fire (pāvaka), being well-integrated, properly digests (food within) its base (adhiṣṭhāna).

Words meanings summery:

• अपानोदानयोः (apānodānayoḥ) - of apāna and udāna (two vital breaths)

• मध्ये (madhye) - in the middle, between, amidst

• प्राणव्यानौ (prāṇavyānau) - prāṇa and vyāna (two vital breaths)

• समाहितौ (samāhitau) - are situated or positioned (are placed, composed, concentrated, established, contained)

• समन्वितः (samanvitaḥ) - being well-integrated (with the vital breaths) (endowed with, accompanied by, connected with, integrated)

• तु (tu) - but, indeed, and, on the other hand

• अधिष्ठानम् (adhiṣṭhānam) - its operating center or anatomical base (seat, basis, substratum, operating center)

• सम्यक् (samyak) - properly, completely, thoroughly, correctly

• पचति (pacati) - cooks, digests

• पावकः (pāvakaḥ) - the digestive fire (pāvaka) (fire, digestive fire, purifier)

Words meanings and morphology

अपानोदानयोः (apānodānayoḥ) - of apāna and udāna (two vital breaths)

(noun)

Genitive, masculine, dual of apānodāna

apānodāna - the apāna and udāna vital breaths (dvandva compound)

Compound type : dvandva (apāna+udāna)

• apāna – down-going vital air, exhalation, downward current of vital force
  noun (masculine)
  Prefix: apa
  Root: an (class 2)
• udāna – up-going vital air, ascending breath, vital air that goes up the throat
  noun (masculine)
  Prefix: ud
  Root: an (class 2)

मध्ये (madhye) - in the middle, between, amidst

(indeclinable)

Locative singular, or used as an indeclinable preposition

Note: Used as an adverbial preposition with genitive

प्राणव्यानौ (prāṇavyānau) - prāṇa and vyāna (two vital breaths)

(noun)

Nominative, masculine, dual of prāṇavyāna

prāṇavyāna - the prāṇa and vyāna vital breaths (dvandva compound)

Compound type : dvandva (prāṇa+vyāna)

• prāṇa – vital air, breath, life-force, spirit, respiration
  noun (masculine)
  Prefix: pra
  Root: an (class 2)
• vyāna – pervading vital air, diffused breath, vital air that pervades the whole body
  noun (masculine)
  Prefixes: vi+ā
  Root: an (class 2)

Note: Subject of samāhitau

समाहितौ (samāhitau) - are situated or positioned (are placed, composed, concentrated, established, contained)

(adjective)

Nominative, masculine, dual of samāhita

samāhita - placed, fixed, contained, composed, concentrated, collected, established

Past Passive Participle

From root dhā with prefixes sam and ā

Prefixes: sam+ā

Root: dhā (class 3)

Note: Used predicatively

समन्वितः (samanvitaḥ) - being well-integrated (with the vital breaths) (endowed with, accompanied by, connected with, integrated)

(adjective)

Nominative, masculine, singular of samanvita

samanvita - connected with, endowed with, possessed of, accompanied by, furnished with

Past Passive Participle

From root i with prefixes sam and anu

Prefixes: sam+anu

Root: i (class 2)

Note: Used predicatively

तु (tu) - but, indeed, and, on the other hand

(indeclinable)

अधिष्ठानम् (adhiṣṭhānam) - its operating center or anatomical base (seat, basis, substratum, operating center)

(noun)

Accusative, neuter, singular of adhiṣṭhāna

adhiṣṭhāna - standing over, superintendence, foundation, basis, seat, abode, power, authority

From root sthā with prefix adhi

Prefix: adhi

Root: sthā (class 1)

Note: Object of pacati

सम्यक् (samyak) - properly, completely, thoroughly, correctly

(indeclinable)

From sam + añc

Root: añc (class 1)

Note: Modifies pacati

पचति (pacati) - cooks, digests

(verb)

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

Present Tense

Root pac (1st class, Parasmaipada)

Root: pac (class 1)

पावकः (pāvakaḥ) - the digestive fire (pāvaka) (fire, digestive fire, purifier)

(noun)

Nominative, masculine, singular of pāvaka

pāvaka - purifying, pure, fire, digestive fire, purifier

From root pū (to purify) + aka suffix

Root: pū (class 1)

Note: Subject of pacati