वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-6, chapter-4, verse-30

कोटीशतपरीवारः केसरी पनसो गजः ।
अर्कश्चातिबलः पार्श्वमेकं तस्याभिरक्षति ॥३०॥

30. koṭīśataparīvāraḥ kesarī panaso gajaḥ ,
arkaścātibalaḥ pārśvamekaṃ tasyābhirakṣati.

30. koṭīśataparīvāraḥ kesarī panasaḥ gajaḥ arkaḥ
ca atibalaḥ pārśvam ekam tasya abhirakṣati

30. kesarī panasaḥ gajaḥ ca atibalaḥ arkaḥ
koṭīśataparīvāraḥ tasya ekam pārśvam abhirakṣati

30. Kesari, Panasa, Gaja, and the extremely powerful Arka, accompanied by hundreds of millions (of warriors), protect one flank of his (army).

Words meanings summery:

• कोटीशतपरीवारः (koṭīśataparīvāraḥ) - surrounded by hundreds of millions of followers or warriors (surrounded by hundreds of millions)

• केसरी (kesarī) - Kesari, a prominent monkey warrior (Kesari (name of a monkey))

• पनसः (panasaḥ) - Panasa, a prominent monkey warrior (Panasa (name of a monkey))

• गजः (gajaḥ) - Gaja, a prominent monkey warrior (Gaja (name of a monkey))

• अर्कः (arkaḥ) - Arka, a prominent monkey warrior (Arka (name of a monkey))

• च (ca) - and

• अतिबलः (atibalaḥ) - extremely powerful (referring to Arka) (very strong, mighty)

• पार्श्वम् (pārśvam) - one flank of the army (side, flank)

• एकम् (ekam) - a single side or flank (one, a single)

• तस्य (tasya) - of him (referring to the main commander, implied Sugrīva) (his, its)

• अभिरक्षति (abhirakṣati) - actively protects (the flank) (protects, guards)

Words meanings and morphology

कोटीशतपरीवारः (koṭīśataparīvāraḥ) - surrounded by hundreds of millions of followers or warriors (surrounded by hundreds of millions)

(adjective)

Nominative, masculine, singular of koṭīśataparīvāra

koṭīśataparīvāra - surrounded by a hundred crores (hundreds of millions)

Compound type : bahuvrihi (koṭīśata+parīvāra)

• koṭīśata – a hundred crores, hundreds of millions
  noun (neuter)
• parīvāra – attendant, retinue, follower, surrounded by
  noun (masculine)
  Prefix: pari

केसरी (kesarī) - Kesari, a prominent monkey warrior (Kesari (name of a monkey))

(proper noun)

Nominative, masculine, singular of kesarin

kesarin - lion; a maned animal; a horse; name of a mythical being; name of a monkey-chief, father of Hanumān

पनसः (panasaḥ) - Panasa, a prominent monkey warrior (Panasa (name of a monkey))

(proper noun)

Nominative, masculine, singular of panasa

panasa - jackfruit tree; jackfruit; name of a monkey warrior

गजः (gajaḥ) - Gaja, a prominent monkey warrior (Gaja (name of a monkey))

(proper noun)

Nominative, masculine, singular of gaja

gaja - elephant; a measure of length; name of a monkey warrior

अर्कः (arkaḥ) - Arka, a prominent monkey warrior (Arka (name of a monkey))

(proper noun)

Nominative, masculine, singular of arka

arka - sun; ray; copper; praise; hymn; name of a monkey warrior

च (ca) - and

(indeclinable)

अतिबलः (atibalaḥ) - extremely powerful (referring to Arka) (very strong, mighty)

(adjective)

Nominative, masculine, singular of atibala

atibala - very strong, of great strength; name of a celestial weapon; name of a monkey warrior

Compound type : tatpurusha (ati+bala)

• ati – over, beyond, exceeding, very, extremely
  indeclinable
• bala – strength, power, force, army
  noun (neuter)

पार्श्वम् (pārśvam) - one flank of the army (side, flank)

(noun)

Accusative, neuter, singular of pārśva

pārśva - side, flank, vicinity, proximity

एकम् (ekam) - a single side or flank (one, a single)

(numeral)

तस्य (tasya) - of him (referring to the main commander, implied Sugrīva) (his, its)

(pronoun)

Genitive, masculine, singular of tad

tad - that, he, she, it

अभिरक्षति (abhirakṣati) - actively protects (the flank) (protects, guards)

(verb)

3rd person , singular, active, present (lat) of rakṣ

root verb

Prefix: abhi

Root: rakṣ (class 1)