महाभारतः mahābhārataḥ - book-3, chapter-62, verse-40

यद्येवमिह कर्तव्यं वसाम्यहमसंशयम् ।
अतोऽन्यथा न मे वासो वर्तते हृदये क्वचित् ॥४०॥

40. yadyevamiha kartavyaṁ vasāmyahamasaṁśayam ,
ato'nyathā na me vāso vartate hṛdaye kvacit.

40. yadi evam iha kartavyam vasāmi aham asaṃśayam |
ataḥ anyathā na me vāsaḥ vartate hṛdaye kvacit

40. If this is to be done here, I shall certainly reside here without doubt. Otherwise, my heart would have no inclination whatsoever to stay.

Words meanings summery:

• यदि (yadi) - if

• एवम् (evam) - thus, in this manner

• इह (iha) - here, in this world

• कर्तव्यम् (kartavyam) - should be done, ought to be done, to be done

• वसामि (vasāmi) - I reside, I dwell

• अहम् (aham) - I

• असंशयम् (asaṁśayam) - without doubt, certainly

• अतः (ataḥ) - otherwise (hence, therefore, otherwise)

• अन्यथा (anyathā) - otherwise, in another way

• न (na) - not, no

• मे (me) - my (to me, my)

• वासः (vāsaḥ) - inclination to stay, residence (dwelling, residence, stay)

• वर्तते (vartate) - exists, remains (exists, remains, is)

• हृदये (hṛdaye) - in the heart

• क्वचित् (kvacit) - whatsoever, at all (anywhere, ever, at all)

Words meanings and morphology

यदि (yadi) - if

(indeclinable)

एवम् (evam) - thus, in this manner

(indeclinable)

इह (iha) - here, in this world

(indeclinable)

कर्तव्यम् (kartavyam) - should be done, ought to be done, to be done

(adjective)

Nominative, neuter, singular of kartavya

kartavya - to be done, should be done

Gerundive

root kṛ + tavya suffix

Root: kṛ (class 8)

Note: Gerundive used as predicate.

वसामि (vasāmi) - I reside, I dwell

(verb)

1st person , singular, active, present (laṭ) of vas

Root: vas (class 1)

अहम् (aham) - I

(pronoun)

Nominative, singular of asmad

asmad - I, we

असंशयम् (asaṁśayam) - without doubt, certainly

(indeclinable)

adverbial form of a-saṃśaya

Compound type : avyayībhāva (a+saṃśaya)

• a – not, un-
  indeclinable
• saṃśaya – doubt, uncertainty
  noun (masculine)
  Prefix: sam
  Root: śi (class 5)

Note: Adverbial usage.

अतः (ataḥ) - otherwise (hence, therefore, otherwise)

(indeclinable)

from pronominal stem idam

अन्यथा (anyathā) - otherwise, in another way

(indeclinable)

from anya + thā suffix

न (na) - not, no

(indeclinable)

मे (me) - my (to me, my)

(pronoun)

Genitive, singular of asmad

asmad - I, we

Note: Also dative. Here possessive.

वासः (vāsaḥ) - inclination to stay, residence (dwelling, residence, stay)

(noun)

Nominative, masculine, singular of vāsa

vāsa - dwelling, residence, stay

from root vas (to dwell)

Root: vas (class 1)

वर्तते (vartate) - exists, remains (exists, remains, is)

(verb)

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

Root: vṛt (class 1)

हृदये (hṛdaye) - in the heart

(noun)

Locative, neuter, singular of hṛdaya

hṛdaya - heart, mind

Root: hṛ (class 1)

क्वचित् (kvacit) - whatsoever, at all (anywhere, ever, at all)

(indeclinable)

from interrogative stem ka + cit

Note: Used with negative 'na' for emphasis.