वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-6, chapter-78, verse-18

तौ महाग्रहसंकाशावन्योन्यं संनिपत्य च ।
संग्रामे शतधा यातौ मेदिन्यां विनिपेततुः ॥१८॥

18. tau mahāgrahasaṃkāśāvanyonyaṃ saṃnipatya ca ,
saṃgrāme śatadhā yātau medinyāṃ vinipetatuḥ.

18. tau mahāgrahasaṃkāśau anyonyam saṃnipatya ca
saṃgrāme śatadhā yātau medinyām vinipetatuḥ

18. ca tau mahāgrahasaṃkāśau saṃgrāme anyonyam
saṃnipatya śatadhā yātau medinyām vinipetatuḥ

18. And those two arrows, resembling great celestial bodies, having collided with each other in the fierce combat and shattered into a hundred pieces, fell down onto the earth.

Words meanings summery:

• तौ (tau) - those two (arrows) (those two)

• महाग्रहसंकाशौ (mahāgrahasaṁkāśau) - resembling great celestial bodies (resembling great planets/celestial bodies)

• अन्योन्यम् (anyonyam) - each other, mutually

• संनिपत्य (saṁnipatya) - having collided, having fallen together

• च (ca) - and, also, moreover

• संग्रामे (saṁgrāme) - in the fierce combat (in battle, in combat)

• शतधा (śatadhā) - in a hundred ways, into a hundred pieces

• यातौ (yātau) - having become (shattered) (gone, become)

• मेदिन्याम् (medinyām) - on the earth

• विनिपेततुः (vinipetatuḥ) - they fell down

Words meanings and morphology

तौ (tau) - those two (arrows) (those two)

(pronoun)

Nominative, masculine, dual of tad

tad - that, those

Note: Refers to the arrows.

महाग्रहसंकाशौ (mahāgrahasaṁkāśau) - resembling great celestial bodies (resembling great planets/celestial bodies)

(adjective)

Nominative, masculine, dual of mahāgrahasaṃkāśa

mahāgrahasaṁkāśa - resembling great planets or meteors

Compound type : bahuvrīhi (mahā+graha+saṃkāśa)

• mahā – great, large, mighty
  adjective
• graha – planet, celestial body, seizer
  noun (masculine)
• saṃkāśa – resembling, like, similar to
  adjective
  From √kāś with sam-
  Prefix: sam

Note: Agrees with 'tau' (arrows).

अन्योन्यम् (anyonyam) - each other, mutually

(indeclinable)

Note: Acts adverbially, 'mutually'.

संनिपत्य (saṁnipatya) - having collided, having fallen together

(indeclinable)

absolutive

From √pat with prefixes sam- and ni-

Prefixes: sam+ni

Root: pat (class 1)

Note: Describes the action before falling.

च (ca) - and, also, moreover

(indeclinable)

Note: Connects clauses.

संग्रामे (saṁgrāme) - in the fierce combat (in battle, in combat)

(noun)

Locative, masculine, singular of saṃgrāma

saṁgrāma - battle, combat, conflict, war

शतधा (śatadhā) - in a hundred ways, into a hundred pieces

(indeclinable)

Suffix -dhā applied to śata (hundred)

Note: Modifies 'yātau'.

यातौ (yātau) - having become (shattered) (gone, become)

(adjective)

Nominative, masculine, dual of yāta

yāta - gone, arrived, passed, become

Past Passive Participle

From √yā (to go)

Root: yā (class 2)

Note: Agrees with 'tau' (arrows), meaning 'having become (shattered)'.

मेदिन्याम् (medinyām) - on the earth

(noun)

Locative, feminine, singular of medinī

medinī - earth, ground

विनिपेततुः (vinipetatuḥ) - they fell down

(verb)

3rd person , dual, active, perfect (liṭ) of pat

Prefixes: vi+ni

Root: pat (class 1)

Note: Verb for 'tau' (arrows).