महाभारतः mahābhārataḥ - book-8, chapter-14, verse-15

अणकैश्च शिलाधौतैर्वज्राशनिविषोपमैः ।
शरैर्निजघ्निवान्पार्थो महेन्द्र इव दानवान् ॥१५॥

15. aṇakaiśca śilādhautairvajrāśaniviṣopamaiḥ ,
śarairnijaghnivānpārtho mahendra iva dānavān.

15. aṇakaiḥ ca śilādhautaiḥ vajrāśaniviṣopamaiḥ
śaraiḥ nijaghnivān pārthaḥ mahendraḥ iva dānavān

15. pārthaḥ aṇakaiḥ ca śilādhautaiḥ vajrāśaniviṣopamaiḥ
śaraiḥ dānavān mahendraḥ iva nijaghnivān

15. Arjuna struck down [the enemies] with sharp arrows, sharpened on stone and resembling thunderbolts, lightning, and poison, just as the great Indra slew the Dānavas (demons).

Words meanings summery:

• अणकैः (aṇakaiḥ) - with small/sharp/subtle (arrows)

• च (ca) - and

• शिलाधौतैः (śilādhautaiḥ) - with those sharpened on stone

• वज्राशनिविषोपमैः (vajrāśaniviṣopamaiḥ) - comparable to thunderbolts, lightning, and poison

• शरैः (śaraiḥ) - with arrows

• निजघ्निवान् (nijaghnivān) - he struck down, killed

• पार्थः (pārthaḥ) - Arjuna (son of Pṛthā)

• महेन्द्रः (mahendraḥ) - the great Indra

• इव (iva) - like, as

• दानवान् (dānavān) - the Dānavas (demons)

Words meanings and morphology

अणकैः (aṇakaiḥ) - with small/sharp/subtle (arrows)

(adjective)

Instrumental, masculine, plural of aṇaka

aṇaka - small, minute, subtle

च (ca) - and

(indeclinable)

शिलाधौतैः (śilādhautaiḥ) - with those sharpened on stone

(adjective)

Instrumental, masculine, plural of śilādhauta

śilādhauta - sharpened on stone

Past Passive Participle

Compound: śilā (stone) + dhauta (washed/sharpened, P.P.P. of √dhāv)

Compound type : tatpuruṣa (śilā+dhauta)

• śilā – stone, rock
  noun (feminine)
• dhauta – washed, cleansed, purified, sharpened
  adjective (masculine)
  Past Passive Participle
  Derived from √dhāv (धाव्)
  Root: dhāv (class 1)

वज्राशनिविषोपमैः (vajrāśaniviṣopamaiḥ) - comparable to thunderbolts, lightning, and poison

(adjective)

Instrumental, masculine, plural of vajrāśaniviṣopama

vajrāśaniviṣopama - comparable to vajra (thunderbolt), aśani (lightning), and viṣa (poison)

Compound type : upama-dvandva-tatpuruṣa (vajra+aśani+viṣa+upama)

• vajra – thunderbolt, diamond
  noun (masculine)
• aśani – lightning, thunderbolt
  noun (masculine/feminine)
• viṣa – poison
  noun (neuter)
• upama – similar, comparable, equal
  adjective
  Derived from upa + mā (मा)
  Prefix: upa
  Root: mā (class 2)

शरैः (śaraiḥ) - with arrows

(noun)

Instrumental, masculine, plural of śara

śara - arrow

निजघ्निवान् (nijaghnivān) - he struck down, killed

(adjective)

Nominative, masculine, singular of nijaghnivat

nijaghnivat - having struck down, having killed

Past Active Participle

Past active participle (kvip form) of √han (हन्) with prefix ni (नि)

Prefix: ni

Root: han (class 2)

पार्थः (pārthaḥ) - Arjuna (son of Pṛthā)

(proper noun)

Nominative, masculine, singular of pārtha

pārtha - son of Pṛthā, an epithet of Arjuna

Derived from Pṛthā + aṇ

महेन्द्रः (mahendraḥ) - the great Indra

(proper noun)

Nominative, masculine, singular of mahendra

mahendra - the great Indra, an epithet of Indra

Compound type : karma-dhāraya (mahā+indra)

• mahā – great, mighty
  adjective
• indra – Indra (king of gods)
  proper noun (masculine)

इव (iva) - like, as

(indeclinable)

दानवान् (dānavān) - the Dānavas (demons)

(noun)

Accusative, masculine, plural of dānava

dānava - a Dānava (demon, son of Danu)