महाभारतः mahābhārataḥ - book-5, chapter-129, verse-9

अग्रे बभूवुः कृष्णस्य समुद्यतमहायुधाः ।
शङ्खचक्रगदाशक्तिशार्ङ्गलाङ्गलनन्दकाः ॥९॥

9. agre babhūvuḥ kṛṣṇasya samudyatamahāyudhāḥ ,
śaṅkhacakragadāśaktiśārṅgalāṅgalanandakāḥ.

9. agre babhūvuḥ kṛṣṇasya samudyata-mahā-āyudhāḥ |
śaṅkha-cakra-gadā-śakti-śārṅga-lāṅgala-nandakāḥ

9. kṛṣṇasya agre samudyata-mahā-āyudhāḥ babhūvuḥ
śaṅkha-cakra-gadā-śakti-śārṅga-lāṅgala-nandakāḥ

9. In front of Krishna, they stood, holding great weapons aloft. These included conches, discuses, maces, spears, the Śārṅga bow, ploughs, and the Nandaka sword.

Words meanings summery:

• अग्रे (agre) - in front (of Krishna) (in front, ahead, at the head, previously)

• बभूवुः (babhūvuḥ) - they stood/were (present) (they were, they became, they existed)

• कृष्णस्य (kṛṣṇasya) - of Krishna

• समुद्यत-महा-आयुधाः (samudyata-mahā-āyudhāḥ) - referring to the warriors (Andhakas/Vṛṣṇis) with their powerful weapons prepared (having great weapons uplifted/ready)

• शङ्ख-चक्र-गदा-शक्ति-शार्ङ्ग-लाङ्गल-नन्दकाः (śaṅkha-cakra-gadā-śakti-śārṅga-lāṅgala-nandakāḥ) - The various weapons wielded by the warriors ((bearing) conch, discus, mace, spear, bow (Śārṅga), plough, and sword (Nandaka))

Words meanings and morphology

अग्रे (agre) - in front (of Krishna) (in front, ahead, at the head, previously)

(noun)

Locative, neuter, singular of agra

agra - front, tip, top, chief

बभूवुः (babhūvuḥ) - they stood/were (present) (they were, they became, they existed)

(verb)

3rd person , plural, active, perfect (lit) of √bhū

3rd person plural, perfect active form of the verb root √bhū.

Root: bhū (class 1)

कृष्णस्य (kṛṣṇasya) - of Krishna

(proper noun)

Genitive, masculine, singular of kṛṣṇa

kṛṣṇa - dark, black, name of a prominent deity

समुद्यत-महा-आयुधाः (samudyata-mahā-āyudhāḥ) - referring to the warriors (Andhakas/Vṛṣṇis) with their powerful weapons prepared (having great weapons uplifted/ready)

(adjective)

Nominative, masculine, plural of samudyata-mahā-āyudha

samudyata-mahā-āyudha - having great weapons uplifted/ready

Bahuvrīhi compound.

Compound type : bahuvrīhi (samudyata+mahā-āyudha)

• samudyata – uplifted, raised, prepared, ready
  adjective (masculine)
  Past Passive Participle
  From `sam` + `ud` + √yam (to lift, raise).
  Prefixes: sam+ud
  Root: yam (class 1)
• mahā-āyudha – great weapon, powerful weapon
  noun (neuter)
  Compound of `mahā` (great) and `āyudha` (weapon).

Note: Refers to the Andhakas and Vṛṣṇis.

शङ्ख-चक्र-गदा-शक्ति-शार्ङ्ग-लाङ्गल-नन्दकाः (śaṅkha-cakra-gadā-śakti-śārṅga-lāṅgala-nandakāḥ) - The various weapons wielded by the warriors ((bearing) conch, discus, mace, spear, bow (Śārṅga), plough, and sword (Nandaka))

(noun)

Nominative, masculine, plural of śaṅkha-cakra-gadā-śakti-śārṅga-lāṅgala-nandaka

śaṅkha-cakra-gadā-śakti-śārṅga-lāṅgala-nandaka - conch, discus, mace, spear, Śārṅga bow, plough, and Nandaka sword

A dvandva (copulative) compound listing various divine weapons.

Compound type : dvandva (śaṅkha+cakra+gadā+śakti+śārṅga+lāṅgala+nandaka)

• śaṅkha – conch, conch shell (used as a trumpet or symbol)
  noun (masculine)
• cakra – discus, wheel
  noun (neuter)
• gadā – mace, club
  noun (feminine)
• śakti – spear, dart, power, energy
  noun (feminine)
• śārṅga – Vishnu's bow, made of horn
  noun (neuter)
• lāṅgala – plough
  noun (neuter)
• nandaka – Nandaka (name of Krishna's sword)
  proper noun (masculine)