महाभारतः mahābhārataḥ - book-9, chapter-20, verse-12

नाराचैर्वत्सदन्तैश्च वृष्ण्यन्धकमहारथौ ।
अभिजघ्नतुरन्योन्यं प्रहृष्टाविव कुञ्जरौ ॥१२॥

12. nārācairvatsadantaiśca vṛṣṇyandhakamahārathau ,
abhijaghnaturanyonyaṁ prahṛṣṭāviva kuñjarau.

12. nārācaiḥ vatsadantaiḥ ca vṛṣṇyandhakamahārathau
abhijaghnatuh anyonyam prahr̥ṣṭau iva kuñjarau

12. vṛṣṇyandhakamahārathau nārācaiḥ vatsadantaiḥ ca anyonyam abhijaghnatuh prahr̥ṣṭau kuñjarau iva.

12. The two great charioteers of the Vṛṣṇi and Andhaka clans struck each other with iron arrows (nārācaiḥ) and calf-tooth arrows, just like two delighted elephants.

Words meanings summery:

• नाराचैः (nārācaiḥ) - with iron arrows

• वत्सदन्तैः (vatsadantaiḥ) - with calf-tooth arrows (arrows shaped like a calf's tooth)

• च (ca) - and, also

• वृष्ण्यन्धकमहारथौ (vṛṣṇyandhakamahārathau) - Referring to Kṛṣṇa and Sātyaki (who belong to these Yadava clans). (the two great charioteers of the Vṛṣṇis and Andhakas)

• अभिजघ्नतुह् (abhijaghnatuh) - they two struck, hit

• अन्योन्यम् (anyonyam) - each other, mutually

• प्रह्र्̥ष्टौ (prahr̥ṣṭau) - joyful, delighted, excited (dual)

• इव (iva) - like, as if

• कुञ्जरौ (kuñjarau) - two elephants

Words meanings and morphology

नाराचैः (nārācaiḥ) - with iron arrows

(noun)

Instrumental, masculine, plural of nārāca

nārāca - an iron arrow, a particular kind of arrow

वत्सदन्तैः (vatsadantaiḥ) - with calf-tooth arrows (arrows shaped like a calf's tooth)

(noun)

Instrumental, masculine, plural of vatsadanta

vatsadanta - calf's tooth; an arrow shaped like a calf's tooth

Compound type : ṣaṣṭhī tatpuruṣa (vatsa+danta)

• vatsa – calf, yearling
  noun (masculine)
• danta – tooth, tusk
  noun (masculine)

च (ca) - and, also

(indeclinable)

वृष्ण्यन्धकमहारथौ (vṛṣṇyandhakamahārathau) - Referring to Kṛṣṇa and Sātyaki (who belong to these Yadava clans). (the two great charioteers of the Vṛṣṇis and Andhakas)

(noun)

Nominative, masculine, dual of vṛṣṇyandhakamahāratha

vṛṣṇyandhakamahāratha - a great charioteer of the Vṛṣṇis and Andhakas

Compound type : dvandva + karmadhāraya (vṛṣṇi+andhaka+mahāratha)

• vṛṣṇi – name of a Yadava clan
  proper noun (masculine)
• andhaka – name of another Yadava clan
  proper noun (masculine)
• mahāratha – great charioteer, a warrior capable of fighting 10,000 archers
  noun (masculine)

Note: The dual form implies two specific individuals.

अभिजघ्नतुह् (abhijaghnatuh) - they two struck, hit

(verb)

3rd person , dual, active, perfect past (liṭ) of abhi-han

root han with prefix abhi

Prefix: abhi

Root: han (class 2)

Note: Form jaghnatuh is the 3rd person dual of han (perfect active).

अन्योन्यम् (anyonyam) - each other, mutually

(pronoun)

Accusative, neuter, singular of anyonya

anyonya - mutual, each other

reduplication of anya

Note: Functions adverbially here.

प्रह्र्̥ष्टौ (prahr̥ṣṭau) - joyful, delighted, excited (dual)

(adjective)

Nominative, masculine, dual of prahr̥ṣṭa

prahr̥ṣṭa - delighted, joyful, excited

Past Passive Participle

from pra-hr̥ṣ (to thrill, be excited) + kta

Prefix: pra

Root: hr̥ṣ (class 4)

इव (iva) - like, as if

(indeclinable)

कुञ्जरौ (kuñjarau) - two elephants

(noun)

Nominative, masculine, dual of kuñjara

kuñjara - elephant

lit. 'one who roams in caves/mountain nooks'