महाभारतः mahābhārataḥ - book-2, chapter-50, verse-4

अथ यज्ञविभूतिं तां काङ्क्षसे भरतर्षभ ।
ऋत्विजस्तव तन्वन्तु सप्ततन्तुं महाध्वरम् ॥४॥

4. atha yajñavibhūtiṁ tāṁ kāṅkṣase bharatarṣabha ,
ṛtvijastava tanvantu saptatantuṁ mahādhvaram.

4. atha yajñavibhūtim tām kāṅkṣase bharatarṣabha
ṛtvijaḥ tava tanvantu saptatantum mahādhvaram

4. bharatarṣabha atha tām yajñavibhūtim kāṅkṣase
tava ṛtvijaḥ saptatantum mahādhvaram tanvantu

4. O best among the Bharatas, if you now desire that glory associated with the Vedic ritual (yajña), then let your priests perform that great seven-stringed Vedic ritual (yajña).

Words meanings summery:

• अथ (atha) - then (now, then, moreover, thereupon)

• यज्ञविभूतिम् (yajñavibhūtim) - the glory associated with the Vedic ritual (the splendor/glory of the Vedic ritual, the power of the Vedic ritual)

• ताम् (tām) - that (glory) (that, her, it)

• काङ्क्षसे (kāṅkṣase) - you desire (you desire, you wish for)

• भरतर्षभ (bharatarṣabha) - O best among the Bharatas (vocative) (O best of Bharatas, O bull of the Bharatas)

• ऋत्विजः (ṛtvijaḥ) - priests (priests, sacrificers)

• तव (tava) - your (your, of you)

• तन्वन्तु (tanvantu) - let them perform (let them perform, let them spread)

• सप्ततन्तुम् (saptatantum) - the seven-stringed (Vedic ritual) (the seven-stringed (ritual), the seven-fold (ritual))

• महाध्वरम् (mahādhvaram) - the great Vedic ritual (the great Vedic ritual, the great sacrifice)

Words meanings and morphology

अथ (atha) - then (now, then, moreover, thereupon)

(indeclinable)

यज्ञविभूतिम् (yajñavibhūtim) - the glory associated with the Vedic ritual (the splendor/glory of the Vedic ritual, the power of the Vedic ritual)

(noun)

Accusative, feminine, singular of yajñavibhūti

yajñavibhūti - the splendor or power of a yajña

Compound type : tatpuruṣa (yajña+vibhūti)

• yajña – Vedic ritual, oblation, sacrifice
  noun (masculine)
  From root yaj- 'to worship, sacrifice'.
  Root: yaj (class 1)
• vibhūti – splendor, glory, power, manifestation, prosperity
  noun (feminine)
  From vi-bhū- 'to be manifest, to become prominent'.
  Prefix: vi
  Root: bhū (class 1)

Note: Accusative singular of yajñavibhūti.

ताम् (tām) - that (glory) (that, her, it)

(pronoun)

Accusative, feminine, singular of tad

tad - that, he, she, it

Note: Accusative singular feminine of tad, agreeing with yajñavibhūtim.

काङ्क्षसे (kāṅkṣase) - you desire (you desire, you wish for)

(verb)

2nd person , singular, middle, present (laṭ) of kāṅkṣ

Desiderative from root kam-

Desiderative formation of √kam (class 1, 'to desire').

Root: kam (class 1)

Note: Present, 2nd person singular, middle voice (ātmanepada) of √kāṅkṣ (desiderative of √kam).

भरतर्षभ (bharatarṣabha) - O best among the Bharatas (vocative) (O best of Bharatas, O bull of the Bharatas)

(proper noun)

Vocative, masculine, singular of bharatarṣabha

bharatarṣabha - best of Bharatas, bull among Bharatas

Compound type : tatpuruṣa (bharata+ṛṣabha)

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

Note: Vocative singular of bharatarṣabha.

ऋत्विजः (ṛtvijaḥ) - priests (priests, sacrificers)

(noun)

Nominative, masculine, plural of ṛtvij

ṛtvij - sacrificing priest, one who sacrifices at proper seasons

From ṛtu (season) + √yaj (to worship).

Root: yaj (class 1)

Note: Nominative plural of ṛtvij.

तव (tava) - your (your, of you)

(pronoun)

Genitive, singular of yuṣmad

yuṣmad - you

Note: Genitive singular of yuṣmad.

तन्वन्तु (tanvantu) - let them perform (let them perform, let them spread)

(verb)

3rd person , plural, active, imperative (loṭ) of tan

Root: tan (class 8)

Note: Imperative, 3rd person plural, active voice (parasmaipada) of √tan.

सप्ततन्तुम् (saptatantum) - the seven-stringed (Vedic ritual) (the seven-stringed (ritual), the seven-fold (ritual))

(noun)

Accusative, masculine, singular of saptatantu

saptatantu - seven-stringed (referring to a Vedic ritual); a great sacrifice (yajña)

Compound type : bahuvrīhi (saptan+tantu)

• saptan – seven
  numeral
• tantu – thread, string, line, continuous series, progeny, ritual (as a continuous thread)
  noun (masculine)

Note: Accusative singular of saptatantu.

महाध्वरम् (mahādhvaram) - the great Vedic ritual (the great Vedic ritual, the great sacrifice)

(noun)

Accusative, masculine, singular of mahādhvara

mahādhvara - a great sacrifice (yajña), a great ritual

Compound type : karmadhāraya (mahā+adhvara)

• mahā – great, large, mighty
  adjective
• adhvara – Vedic ritual, sacrifice, solemn ceremony
  noun (masculine)

Note: Accusative singular of mahādhvara, agreeing with saptatantum.