महाभारतः mahābhārataḥ - book-1, chapter-158, verse-54

त्वत्तो ह्यहं ग्रहीष्यामि अस्त्रमाग्नेयमुत्तमम् ।
तथैव सख्यं बीभत्सो चिराय भरतर्षभ ॥५४॥

54. tvatto hyahaṁ grahīṣyāmi astramāgneyamuttamam ,
tathaiva sakhyaṁ bībhatso cirāya bharatarṣabha.

54. tvattaḥ hi aham grahīṣyāmi astram āgneyam uttamam
tathā eva sakhyam bībhatso cirāya bharata-ṛṣabha

54. "Indeed, from you, O Bibhatsu (Arjuna), O best of Bharatas, I shall take the supreme fire-weapon, and likewise (I shall establish) a lasting friendship with you."

Words meanings summery:

• त्वत्तः (tvattaḥ) - from you

• हि (hi) - indeed, surely, for

• अहम् (aham) - I

• ग्रहीष्यामि (grahīṣyāmi) - I shall take, I shall seize

• अस्त्रम् (astram) - weapon, missile

• आग्नेयम् (āgneyam) - the fire-weapon (fiery, belonging to Agni)

• उत्तमम् (uttamam) - supreme, best, excellent

• तथा (tathā) - thus, so, likewise

• एव (eva) - indeed, only, just

• सख्यम् (sakhyam) - friendship

• बीभत्सो (bībhatso) - O Bibhatsu (Arjuna) (O Bibhatsu (Arjuna's epithet))

• चिराय (cirāya) - for a long time, permanently

• भरत-ऋषभ (bharata-ṛṣabha) - O best of Bharatas, O bull among Bharatas

Words meanings and morphology

त्वत्तः (tvattaḥ) - from you

(pronoun)

Ablative, singular of tvad

tvad - you, yourself

हि (hi) - indeed, surely, for

(indeclinable)

अहम् (aham) - I

(pronoun)

Nominative, singular of mad

mad - I, me

ग्रहीष्यामि (grahīṣyāmi) - I shall take, I shall seize

(verb)

1st person , singular, active, future (lṛṭ) of grah

Root: grah (class 9)

अस्त्रम् (astram) - weapon, missile

(noun)

Accusative, neuter, singular of astra

astra - a missile, weapon, dart (especially one discharged by a mantra)

Root: as (class 4)

आग्नेयम् (āgneyam) - the fire-weapon (fiery, belonging to Agni)

(adjective)

Accusative, neuter, singular of āgneya

āgneya - fiery, relating to Agni (fire god)

Derived from Agni with the suffix -eya

उत्तमम् (uttamam) - supreme, best, excellent

(adjective)

Accusative, neuter, singular of uttama

uttama - highest, best, excellent, supreme

तथा (tathā) - thus, so, likewise

(indeclinable)

एव (eva) - indeed, only, just

(indeclinable)

सख्यम् (sakhyam) - friendship

(noun)

Accusative, neuter, singular of sakhya

sakhya - friendship, alliance

बीभत्सो (bībhatso) - O Bibhatsu (Arjuna) (O Bibhatsu (Arjuna's epithet))

(proper noun)

Vocative, masculine, singular of bībhatsu

bībhatsu - disgusting, abhorrent; Arjuna's epithet ('one who loathes foul play')

चिराय (cirāya) - for a long time, permanently

(indeclinable)

Note: Dative case of 'cira' used adverbially.

भरत-ऋषभ (bharata-ṛṣabha) - O best of Bharatas, O bull among Bharatas

(noun)

Vocative, masculine, singular of bharata-ṛṣabha

bharata-ṛṣabha - bull among Bharatas, best of Bharatas (epithet)

Compound type : tatpuruṣa (bharata+ṛṣabha)

• bharata – a descendant of Bharata (name of a king)
  proper noun (masculine)
• ṛṣabha – a bull; the best, chief, pre-eminent
  noun (masculine)