महाभारतः mahābhārataḥ - book-3, chapter-203, verse-18

बस्तिमूले गुदे चैव पावकः समुपाश्रितः ।
वहन्मूत्रं पुरीषं चाप्यपानः परिवर्तते ॥१८॥

18. bastimūle gude caiva pāvakaḥ samupāśritaḥ ,
vahanmūtraṁ purīṣaṁ cāpyapānaḥ parivartate.

18. basti-mūle gude ca eva pāvakaḥ samupāśritaḥ
vahan mūtraṃ purīṣaṃ ca api apānaḥ parivartate

18. At the root of the bladder and in the anus, the vital fire (pāvaka) is situated. Also, the vital air (apāna), carrying urine and feces, moves about.

Words meanings summery:

• बस्ति-मूले (basti-mūle) - at the root of the bladder

• गुदे (gude) - in the anus

• च (ca) - and

• एव (eva) - emphasizing the preceding words (indeed, just, only)

• पावकः (pāvakaḥ) - the digestive fire or heat associated with physiological functions (fire, pure, purifier)

• समुपाश्रितः (samupāśritaḥ) - is located, resides (resorted to, situated, resting on)

• वहन् (vahan) - moving, carrying along (carrying, bearing, conveying)

• मूत्रं (mūtraṁ) - urine

• पुरीषं (purīṣaṁ) - feces, excrement

• च (ca) - and

• अपि (api) - emphasizing, indicating addition (also, even, moreover)

• अपानः (apānaḥ) - one of the five vital airs (prāṇas), responsible for excretion and downward movements in the body (apāna (downward moving vital air))

• परिवर्तते (parivartate) - circulates, moves about (moves around, revolves, circulates)

Words meanings and morphology

बस्ति-मूले (basti-mūle) - at the root of the bladder

(noun)

Locative, neuter, singular of basti-mūla

basti-mūla - root of the bladder

Compound type : tatpurusha (basti+mūla)

• basti – bladder
  noun (feminine)
• mūla – root, base, foundation
  noun (neuter)

गुदे (gude) - in the anus

(noun)

Locative, masculine, singular of guda

guda - anus, intestine, rectum

च (ca) - and

(indeclinable)

एव (eva) - emphasizing the preceding words (indeed, just, only)

(indeclinable)

पावकः (pāvakaḥ) - the digestive fire or heat associated with physiological functions (fire, pure, purifier)

(noun)

Nominative, masculine, singular of pāvaka

pāvaka - fire, pure, purifying, Agni

From root pū 'to purify'.

Root: pū (class 1)

समुपाश्रितः (samupāśritaḥ) - is located, resides (resorted to, situated, resting on)

(adjective)

Nominative, masculine, singular of samupāśrita

samupāśrita - resorted to, dwelling in, located in, resting on, dependent on

Past Passive Participle

Formed from root śri with upasargas sam and upa.

Prefixes: sam+upa

Root: śri (class 1)

Note: Qualifies 'pāvakaḥ'.

वहन् (vahan) - moving, carrying along (carrying, bearing, conveying)

(adjective)

Nominative, masculine, singular of vahant

vahant - carrying, bearing, conveying, flowing

Present Active Participle

From root vah (to carry, to flow).

Root: vah (class 1)

Note: Qualifies 'apānaḥ'.

मूत्रं (mūtraṁ) - urine

(noun)

Accusative, neuter, singular of mūtra

mūtra - urine

Note: Object of 'vahan'.

पुरीषं (purīṣaṁ) - feces, excrement

(noun)

Accusative, neuter, singular of purīṣa

purīṣa - feces, excrement, dung, sediment

Note: Object of 'vahan'.

च (ca) - and

(indeclinable)

अपि (api) - emphasizing, indicating addition (also, even, moreover)

(indeclinable)

अपानः (apānaḥ) - one of the five vital airs (prāṇas), responsible for excretion and downward movements in the body (apāna (downward moving vital air))

(noun)

Nominative, masculine, singular of apāna

apāna - downward-moving air, one of the five vital airs (prāṇas)

From upasarga 'apa' and root 'an' (to breathe).

Prefix: apa

Root: an (class 2)

Note: Subject of 'parivartate'.

परिवर्तते (parivartate) - circulates, moves about (moves around, revolves, circulates)

(verb)

3rd person , singular, middle, present (laṭ) of parivart

Middle voice (ātmanepada) from root vṛt with upasarga pari.

Prefix: pari

Root: vṛt (class 1)