महाभारतः mahābhārataḥ - book-15, chapter-33, verse-16

वायुभक्षो निराहारः कृशो धमनिसंततः ।
कदाचिद्दृश्यते विप्रैः शून्येऽस्मिन्कानने क्वचित् ॥१६॥

16. vāyubhakṣo nirāhāraḥ kṛśo dhamanisaṁtataḥ ,
kadāciddṛśyate vipraiḥ śūnye'sminkānane kvacit.

16. vāyu bhakṣaḥ nirāhāraḥ kṛśaḥ dhamanī saṃtataḥ
kadācit dṛśyate vipraiḥ śūnye asmin kānane kvacit

16. vāyu bhakṣaḥ,
nirāhāraḥ,
kṛśaḥ,
dhamanī saṃtataḥ (saḥ) kadācit vipraiḥ asmin śūnye kānane kvacit dṛśyate.

16. Living on air, abstaining from food, emaciated and covered with veins, he is sometimes seen by Brahmins somewhere in this deserted forest.

Words meanings summery:

• वायुभक्षः (vāyubhakṣaḥ) - Describing Vidura's ascetic practice. (subsisting on air, air-eater)

• निराहारः (nirāhāraḥ) - without food, fasting, abstaining from food

• कृशः (kṛśaḥ) - emaciated, lean, thin

• धमनीसंततः (dhamanīsaṁtataḥ) - His emaciated body shows prominent veins. (covered with veins)

• कदाचित् (kadācit) - sometimes, at some time, perhaps

• दृश्यते (dṛśyate) - is seen, appears

• विप्रैः (vipraiḥ) - by Brahmins, by wise ones

• शून्ये (śūnye) - In this desolate forest. (in the deserted, in the empty, in the void)

• अस्मिन् (asmin) - Referring to the forest mentioned. (in this)

• कानने (kānane) - in the forest, in the grove

• क्वचित् (kvacit) - somewhere, in some place, at some time

Words meanings and morphology

वायुभक्षः (vāyubhakṣaḥ) - Describing Vidura's ascetic practice. (subsisting on air, air-eater)

(noun)

Nominative, masculine, singular of vāyubhakṣa

vāyubhakṣa - one who subsists on air

Compound type : tatpurusha (vāyu+bhakṣa)

• vāyu – air, wind
  noun (masculine)
• bhakṣa – eater, consumer
  noun (masculine)

निराहारः (nirāhāraḥ) - without food, fasting, abstaining from food

(adjective)

Nominative, masculine, singular of nirāhāra

nirāhāra - without food, fasting, abstaining from food

Compound type : bahuvrihi (nis+āhāra)

• nis – without, out, forth
  indeclinable
• āhāra – food, sustenance, diet
  noun (masculine)

कृशः (kṛśaḥ) - emaciated, lean, thin

(adjective)

Nominative, masculine, singular of kṛśa

kṛśa - emaciated, lean, thin, weak

धमनीसंततः (dhamanīsaṁtataḥ) - His emaciated body shows prominent veins. (covered with veins)

(adjective)

Nominative, masculine, singular of dhamanīsaṃtata

dhamanīsaṁtata - covered or spread with veins

Compound type : tatpurusha (dhamanī+saṃtata)

• dhamanī – vein, artery, pipe
  noun (feminine)
• saṃtata – spread, covered, continuous, extended
  adjective
  Past Passive Participle
  Derived from root tan with prefix sam
  Prefix: sam
  Root: tan (class 8)

कदाचित् (kadācit) - sometimes, at some time, perhaps

(indeclinable)

दृश्यते (dṛśyate) - is seen, appears

(verb)

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

Present passive form

Root dṛś, 3rd singular passive present

Root: dṛś (class 1)

विप्रैः (vipraiḥ) - by Brahmins, by wise ones

(noun)

Instrumental, masculine, plural of vipra

vipra - Brahmin, priest, inspired, wise

शून्ये (śūnye) - In this desolate forest. (in the deserted, in the empty, in the void)

(adjective)

Locative, neuter, singular of śūnya

śūnya - empty, void, deserted, শূন্য

अस्मिन् (asmin) - Referring to the forest mentioned. (in this)

(pronoun)

Locative, neuter, singular of idam

idam - this, this one

कानने (kānane) - in the forest, in the grove

(noun)

Locative, neuter, singular of kānana

kānana - forest, grove, wood

क्वचित् (kvacit) - somewhere, in some place, at some time

(indeclinable)