महाभारतः mahābhārataḥ - book-7, chapter-70, verse-6

वयं द्रोणं पुरस्कृत्य सर्वशस्त्रभृतां वरम् ।
पार्षतप्रमुखान्पार्थानभ्यवर्षाम सायकैः ॥६॥

6. vayaṁ droṇaṁ puraskṛtya sarvaśastrabhṛtāṁ varam ,
pārṣatapramukhānpārthānabhyavarṣāma sāyakaiḥ.

6. vayam droṇam puraskṛtya sarvaśastrabhṛtām varam
pārṣatapramukhān pārthān abhyavarṣāma sāyakaiḥ

6. vayam sarvaśastrabhṛtām varam droṇam puraskṛtya
pārṣatapramukhān pārthān sāyakaiḥ abhyavarṣāma

6. We, with Droṇa—the foremost among all weapon-bearers—at our lead, showered arrows upon the Pārthas, who were headed by Drupada's son (Dhṛṣṭadyumna).

Words meanings summery:

• वयम् (vayam) - Refers to the Kaurava warriors led by Droṇa. (we)

• द्रोणम् (droṇam) - Droṇa

• पुरस्कृत्य (puraskṛtya) - having placed in front, having made foremost, leading

• सर्वशस्त्रभृताम् (sarvaśastrabhṛtām) - of all weapon-bearers

• वरम् (varam) - best, excellent, boon

• पार्षतप्रमुखान् (pārṣatapramukhān) - having Drupada's son (Dhṛṣṭadyumna) as chief

• पार्थान् (pārthān) - the Pārthas (sons of Pṛthā/Kuntī), i.e., the Pāṇḍavas

• अभ्यवर्षाम (abhyavarṣāma) - we showered upon, we rained upon

• सायकैः (sāyakaiḥ) - with arrows

Words meanings and morphology

वयम् (vayam) - Refers to the Kaurava warriors led by Droṇa. (we)

(pronoun)

Nominative, plural of asmad

asmad - I, we (first person pronoun)

Note: Subject of 'abhyavarṣāma'.

द्रोणम् (droṇam) - Droṇa

(proper noun)

Accusative, masculine, singular of droṇa

droṇa - Droṇa (a proper name, the preceptor of Kauravas and Pāṇḍavas)

Note: Object of the action implied by 'puraskṛtya'.

पुरस्कृत्य (puraskṛtya) - having placed in front, having made foremost, leading

(indeclinable)

Absolutive (gerund) with prefix

Derived from puras-kṛ 'to place in front, to honor'.

Prefix: puras

Root: kṛ (class 8)

Note: Denotes a preceding action by the subject 'vayam'.

सर्वशस्त्रभृताम् (sarvaśastrabhṛtām) - of all weapon-bearers

(noun)

Genitive, masculine, plural of sarvaśastrabhṛt

sarvaśastrabhṛt - bearer of all weapons, one who wields all weapons

Tatpurusha compound: sarva (all) + śastra (weapon) + bhṛt (bearing).

Compound type : tatpurusha (sarva+śastra+bhṛt)

• sarva – all, every
  pronoun (masculine)
• śastra – weapon, arm, knife
  noun (neuter)
• bhṛt – bearing, carrying, supporting
  adjective (masculine)
  Agent noun
  Derived from root bhṛ 'to bear, carry'.
  Root: bhṛ (class 3)

Note: Genitive plural, indicating 'among' or 'of' in relation to 'varam'.

वरम् (varam) - best, excellent, boon

(adjective)

Accusative, masculine, singular of vara

vara - best, excellent, principal; a boon, a choice

Note: Qualifies 'droṇam'.

पार्षतप्रमुखान् (pārṣatapramukhān) - having Drupada's son (Dhṛṣṭadyumna) as chief

(adjective)

Accusative, masculine, plural of pārṣatapramukha

pārṣatapramukha - having the son of Pṛṣata (Dhṛṣṭadyumna) as chief

Bahuvrihi compound: Pārṣata (son of Pṛṣata, i.e., Dhṛṣṭadyumna) + pramukha (chief, foremost).

Compound type : bahuvrihi (pārṣata+pramukha)

• pārṣata – son of Pṛṣata (an epithet for Dhṛṣṭadyumna)
  proper noun (masculine)
  Patronymic from Pṛṣata.
• pramukha – chief, foremost, principal
  noun (masculine)
  Prefix: pra

Note: Qualifies 'pārthān'.

पार्थान् (pārthān) - the Pārthas (sons of Pṛthā/Kuntī), i.e., the Pāṇḍavas

(proper noun)

Accusative, masculine, plural of pārtha

pārtha - son of Pṛthā (Kuntī), name of Arjuna, or any of the Pāṇḍavas

Derived from Pṛthā with a patronymic suffix.

Note: Direct object of 'abhyavarṣāma'.

अभ्यवर्षाम (abhyavarṣāma) - we showered upon, we rained upon

(verb)

1st person , plural, active, past imperfect (laṅ) of abhyavarṣ

Imperfect

1st person plural imperfect active. From abhi-ava-vṛṣ 'to rain, shower'.

Prefixes: abhi+ava

Root: vṛṣ (class 1)

Note: Verb performed by 'vayam'.

सायकैः (sāyakaiḥ) - with arrows

(noun)

Instrumental, masculine, plural of sāyaka

sāyaka - arrow, dart

Note: Instrument of action for 'abhyavarṣāma'.