महाभारतः mahābhārataḥ - book-3, chapter-173, verse-15

त्वदर्थसिद्ध्यर्थमभिप्रवृत्तौ सुपर्णकेतुश्च शिनेश्च नप्ता ।
यथैव कृष्णोऽप्रतिमो बलेन तथैव राजन्स शिनिप्रवीरः ॥१५॥

15. tvadarthasiddhyarthamabhipravṛttau; suparṇaketuśca śineśca naptā ,
yathaiva kṛṣṇo'pratimo balena; tathaiva rājansa śinipravīraḥ.

15. tvat artha-siddhi-artham abhipravṛttau
suparṇaketuḥ ca śineḥ ca naptā
| yathā eva kṛṣṇaḥ apratimaḥ balena
tathā eva rājan sa śinipravīraḥ

15. Kṛṣṇa (suparṇaketuḥ), whose banner bears Garuḍa, and the grandson of Śini (śineḥ naptā) are both engaged in fulfilling your objective. Just as Kṛṣṇa is unrivaled in strength, so too, O king, is that great hero from the Śini lineage (śinipravīraḥ).

Words meanings summery:

• त्वत्-अर्थ-सिद्धि-अर्थम् (tvat-artha-siddhi-artham) - for the sake of achieving your goal (for the sake of the accomplishment of your purpose)

• अभिप्रवृत्तौ (abhipravṛttau) - Kṛṣṇa and Satyaki are engaged in this purpose. (engaged, devoted, intent on (dual))

• सुपर्णकेतुः (suparṇaketuḥ) - Kṛṣṇa (whose banner is Garuḍa (Kṛṣṇa))

• च (ca) - and

• शिनेः (śineḥ) - of Śini

• च (ca) - and

• नप्ता (naptā) - Satyaki (grandson)

• यथा (yathā) - just as, as

• एव (eva) - indeed, only, just

• कृष्णः (kṛṣṇaḥ) - Lord Kṛṣṇa (Kṛṣṇa)

• अप्रतिमः (apratimaḥ) - unrivaled, unequaled, peerless

• बलेन (balena) - by strength, in strength

• तथा (tathā) - so too, in the same way

• एव (eva) - indeed, only, just

• राजन् (rājan) - Dhṛtarāṣṭra (O king)

• स (sa) - he, that

• शिनिप्रवीरः (śinipravīraḥ) - Satyaki (foremost hero of Śini (Satyaki))

Words meanings and morphology

त्वत्-अर्थ-सिद्धि-अर्थम् (tvat-artha-siddhi-artham) - for the sake of achieving your goal (for the sake of the accomplishment of your purpose)

(noun)

Accusative, neuter, singular of tvadartha-siddhyartha

tvadartha-siddhyartha - for the sake of the accomplishment of your purpose

Compound type : tatpurusha (tvat+artha+siddhi+artha)

• yuṣmad – you, your
  pronoun
• artha – purpose, object
  noun (masculine)
• siddhi – accomplishment, success
  noun (feminine)
  Root: sidh
• artha – purpose, sake
  noun (masculine)

Note: Used adverbially to express purpose.

अभिप्रवृत्तौ (abhipravṛttau) - Kṛṣṇa and Satyaki are engaged in this purpose. (engaged, devoted, intent on (dual))

(adjective)

Nominative, masculine, dual of abhipravṛtta

abhipravṛtta - engaged, devoted, intent on

past passive participle

derived from root vṛt (to be, to exist, to turn) with prefixes abhi and pra

Prefixes: abhi+pra

Root: vṛt (class 1)

Note: Agrees with 'suparṇaketuḥ' and 'śineḥ naptā'.

सुपर्णकेतुः (suparṇaketuḥ) - Kṛṣṇa (whose banner is Garuḍa (Kṛṣṇa))

(proper noun)

Nominative, masculine, singular of suparṇaketu

suparṇaketu - one whose banner is Garuḍa, (an epithet of) Viṣṇu/Kṛṣṇa

Compound type : bahuvrihi (suparṇa+ketu)

• suparṇa – having beautiful wings, Garuḍa
  noun (masculine)
• ketu – banner, flag, sign
  noun (masculine)
  Root: cit

च (ca) - and

(indeclinable)

शिनेः (śineḥ) - of Śini

(proper noun)

Genitive, masculine, singular of śini

śini - name of an ancient Yādava king

च (ca) - and

(indeclinable)

नप्ता (naptā) - Satyaki (grandson)

(noun)

Nominative, masculine, singular of naptṛ

naptṛ - grandson, descendant

यथा (yathā) - just as, as

(indeclinable)

एव (eva) - indeed, only, just

(indeclinable)

कृष्णः (kṛṣṇaḥ) - Lord Kṛṣṇa (Kṛṣṇa)

(proper noun)

Nominative, masculine, singular of kṛṣṇa

kṛṣṇa - Kṛṣṇa, dark, black

अप्रतिमः (apratimaḥ) - unrivaled, unequaled, peerless

(adjective)

Nominative, masculine, singular of apratima

apratima - unrivaled, unequaled, peerless

derived from 'pratima' (likeness) with negative prefix 'a'

Compound type : tatpurusha (a+pratima)

• a – not, un-
  indeclinable
  negative prefix
• pratima – likeness, image, comparison
  noun (feminine)
  Prefix: prati
  Root: mā

Note: Agrees with 'kṛṣṇaḥ'.

बलेन (balena) - by strength, in strength

(noun)

Instrumental, neuter, singular of bala

bala - strength, power, force

Root: bal

Note: Indicates the means or respect in which Kṛṣṇa is unrivaled.

तथा (tathā) - so too, in the same way

(indeclinable)

एव (eva) - indeed, only, just

(indeclinable)

राजन् (rājan) - Dhṛtarāṣṭra (O king)

(noun)

Vocative, masculine, singular of rājan

rājan - king, ruler

Root: rāj

स (sa) - he, that

(pronoun)

Nominative, masculine, singular of tad

tad - that, he

शिनिप्रवीरः (śinipravīraḥ) - Satyaki (foremost hero of Śini (Satyaki))

(proper noun)

Nominative, masculine, singular of śinipravīra

śinipravīra - foremost hero of the Śinis

Compound type : tatpurusha (śini+pravīra)

• śini – name of an ancient Yādava king
  proper noun (masculine)
• pravīra – excellent hero, chief hero
  noun (masculine)
  Prefix: pra
  Root: vīr

Note: Refers to Satyaki.