महाभारतः mahābhārataḥ - book-12, chapter-136, verse-203

तस्मादभीतवद्भीतो विश्वस्तवदविश्वसन् ।
कार्याणां गुरुतां बुद्ध्वा नानृतं किंचिदाचरेत् ॥२०३॥

203. tasmādabhītavadbhīto viśvastavadaviśvasan ,
kāryāṇāṁ gurutāṁ buddhvā nānṛtaṁ kiṁcidācaret.

203. tasmāt abhītavat bhītaḥ viśvastavat aviśvasan
kāryāṇām gurutām buddhvā na anṛtam kiṃcit ācaret

203. tasmāt,
bhītaḥ (api) abhītavat,
aviśvasan (api) viśvastavat (ācaret); kāryāṇām gurutām buddhvā,
kiṃcit anṛtam na ācaret.

203. Therefore, one should, though fearful, act as if fearless; and though distrusting, act as if trusting. Having understood the gravity of (one's) actions, one should not commit any falsehood.

Words meanings summery:

• तस्मात् (tasmāt) - therefore, from that

• अभीतवत् (abhītavat) - like a fearless one, as if fearless

• भीतः (bhītaḥ) - fearful, a fearful one

• विश्वस्तवत् (viśvastavat) - like a trusting one, as if trusting

• अविश्वसन् (aviśvasan) - not trusting, distrusting

• कार्याणाम् (kāryāṇām) - of actions, of affairs, of duties

• गुरुताम् (gurutām) - gravity, importance, weight, significance

• बुद्ध्वा (buddhvā) - having understood, having known, having perceived

• न (na) - not, no

• अनृतम् (anṛtam) - untruth, falsehood, lie

• किंचित् (kiṁcit) - any (falsehood) (something, anything, a little)

• आचरेत् (ācaret) - one should do, one should practice, one should perform

Words meanings and morphology

तस्मात् (tasmāt) - therefore, from that

(pronoun)

Ablative, neuter, singular of tad

tad - that, that one, it

Note: used adverbially

अभीतवत् (abhītavat) - like a fearless one, as if fearless

(indeclinable)

from abhīta + -vat (suffix meaning 'like', 'as if')

भीतः (bhītaḥ) - fearful, a fearful one

(adjective)

Nominative, masculine, singular of bhīta

bhīta - frightened, scared, fearful

Past Passive Participle

from root bhī- 'to fear'

Root: bhī (class 3)

Note: used substantively; implicit subject of ācaret

विश्वस्तवत् (viśvastavat) - like a trusting one, as if trusting

(indeclinable)

from viśvasta + -vat (suffix meaning 'like', 'as if')

अविश्वसन् (aviśvasan) - not trusting, distrusting

(adjective)

Nominative, masculine, singular of aviśvasat

aviśvasat - not trusting, distrusting

Present Active Participle

from root śvas- 'to trust' with prefix vi- and negative prefix a-

Compound type : nañ-tatpuruṣa (a+viśvasat)

• a – not, un-
  indeclinable
• viśvasat – trusting, having confidence
  adjective (masculine)
  Present Active Participle
  from root śvas- 'to trust' with prefix vi-
  Prefix: vi
  Root: śvas (class 2)

Note: used as a participle modifying the implicit subject

कार्याणाम् (kāryāṇām) - of actions, of affairs, of duties

(noun)

Genitive, neuter, plural of kārya

kārya - to be done, to be performed; an action, a duty, an affair

Gerundive

from root kṛ- 'to do'

Root: kṛ (class 8)

गुरुताम् (gurutām) - gravity, importance, weight, significance

(noun)

Accusative, feminine, singular of gurutā

gurutā - gravity, weight, importance, dignity

from guru 'heavy, important' + tā (suffix for abstract noun)

बुद्ध्वा (buddhvā) - having understood, having known, having perceived

(indeclinable)

Absolutive (Gerund)

from root budh- 'to know, understand'

Root: budh (class 1)

न (na) - not, no

(indeclinable)

अनृतम् (anṛtam) - untruth, falsehood, lie

(noun)

Accusative, neuter, singular of anṛta

anṛta - untruth, falsehood, lie

from negative prefix an- and ṛta 'truth'

Compound type : nañ-tatpuruṣa (an+ṛta)

• an – not, un-
  indeclinable
• ṛta – truth, cosmic order, right
  noun (neuter)

किंचित् (kiṁcit) - any (falsehood) (something, anything, a little)

(pronoun)

Accusative, neuter, singular of kiṃcit

kiṁcit - something, anything, a little, some

from kim + cit

आचरेत् (ācaret) - one should do, one should practice, one should perform

(verb)

3rd person , singular, active, optative (liṅ) of ācar

Optative Active

from root car- 'to move, practice' with prefix ā-

Prefix: ā

Root: car (class 1)