महाभारतः mahābhārataḥ - book-5, chapter-63, verse-10

वासुदेवोऽपि दुर्धर्षो यतात्मा यत्र पाण्डवः ।
अविषह्यं पृथिव्यापि तद्बलं यत्र केशवः ॥१०॥

10. vāsudevo'pi durdharṣo yatātmā yatra pāṇḍavaḥ ,
aviṣahyaṁ pṛthivyāpi tadbalaṁ yatra keśavaḥ.

10. vāsudevaḥ api durdharṣaḥ yata-ātmā yatra pāṇḍavaḥ
aviṣahyam pṛthivyā api tat balam yatra keśavaḥ

10. Where the Pandava (Arjuna) is, there is also Vasudeva (Krishna), who is self-controlled (yata-ātman) and invincible. Where Keshav (Krishna) is, that power is irresistible even for the earth.

Words meanings summery:

• वासुदेवः (vāsudevaḥ) - Krishna, son of Vasudeva (Vasudeva)

• अपि (api) - also, even, too

• दुर्धर्षः (durdharṣaḥ) - unconquerable, invincible, difficult to assail

• यत-आत्मा (yata-ātmā) - self-controlled, whose self (ātman) is subdued

• यत्र (yatra) - where, in which place

• पाण्डवः (pāṇḍavaḥ) - Arjuna (Pandava (descendant of Pandu))

• अविषह्यम् (aviṣahyam) - irresistible, unbearable

• पृथिव्या (pṛthivyā) - by the earth

• अपि (api) - even, also, too

• तत् (tat) - that, it

• बलम् (balam) - strength, power, force

• यत्र (yatra) - where, in which place

• केशवः (keśavaḥ) - Krishna (Keshav)

Words meanings and morphology

वासुदेवः (vāsudevaḥ) - Krishna, son of Vasudeva (Vasudeva)

(proper noun)

Nominative, masculine, singular of vāsudeva

vāsudeva - son of Vasudeva (an epithet of Krishna)

Derived from Vasudeva (father's name) with suffix -a

अपि (api) - also, even, too

(indeclinable)

Note: particle

दुर्धर्षः (durdharṣaḥ) - unconquerable, invincible, difficult to assail

(adjective)

Nominative, masculine, singular of durdharṣa

durdharṣa - difficult to conquer, irresistible, unconquerable

Compound of 'dur' (difficult) and 'dharṣa' (assailing)

Prefix: dur

Root: dhṛṣ (class 5)

Note: Qualifies Vāsudeva.

यत-आत्मा (yata-ātmā) - self-controlled, whose self (ātman) is subdued

(adjective)

Nominative, masculine, singular of yatātman

yatātman - self-controlled, composed, disciplined

Compound of 'yata' (controlled) and 'ātman' (self)

Compound type : bahuvrīhi (yata+ātman)

• yata – controlled, restrained
  adjective (masculine)
  Past Passive Participle
  PPP of root 'yam' (to restrain)
  Root: yam (class 1)
• ātman – self, soul, mind
  noun (masculine)

Note: Qualifies Vāsudeva.

यत्र (yatra) - where, in which place

(indeclinable)

Adverbial suffix 'tra'

Note: correlative adverb

पाण्डवः (pāṇḍavaḥ) - Arjuna (Pandava (descendant of Pandu))

(proper noun)

Nominative, masculine, singular of pāṇḍava

pāṇḍava - descendant of Pandu

Derived from 'Paṇḍu' with patronymic suffix 'a'

अविषह्यम् (aviṣahyam) - irresistible, unbearable

(adjective)

Nominative, neuter, singular of aviṣahya

aviṣahya - irresistible, unconquerable, unbearable

Gerundive/Future Passive Participle

Negative prefix 'a-' + 'viṣahya' (bearable). Gerundive of root 'sah' with prefix 'vi'

Prefix: vi

Root: sah (class 1)

Note: Qualifies 'balam'.

पृथिव्या (pṛthivyā) - by the earth

(noun)

Instrumental, feminine, singular of pṛthivī

pṛthivī - earth, world

Note: Can also be dative/ablative, but instrumental 'by the earth' fits the context of irresistible 'to/for' the earth.

अपि (api) - even, also, too

(indeclinable)

Note: particle, emphasizing 'pṛthivyā'

तत् (tat) - that, it

(pronoun)

Nominative, neuter, singular of tad

tad - that, it

Note: Refers to 'balam'.

बलम् (balam) - strength, power, force

(noun)

Nominative, neuter, singular of bala

bala - strength, power, force, army

यत्र (yatra) - where, in which place

(indeclinable)

Adverbial suffix 'tra'

Note: correlative adverb

केशवः (keśavaḥ) - Krishna (Keshav)

(proper noun)

Nominative, masculine, singular of keśava

keśava - Krishna (having fine hair, or having slain the demon Keśī)