वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-1, chapter-16, verse-20

तैर्मेघवृन्दाचलकूटकल्पैर्महाबलैर्वानरयूथपालैः ।
बभूव भूर्भीमशरीररूपैः समावृता रामसहायहेतोः ॥२०॥

20. tairmeghavṛndācalakūṭakalpairmahābalairvānarayūthapālaiḥ ,
babhūva bhūrbhīmaśarīrarūpaiḥ samāvṛtā rāmasahāyahetoḥ.

20. taiḥ meghavṛndaacalakūṭakalpaiḥ mahābalaiḥ vānarayūthapālaiḥ
babhūva bhūḥ bhīmaśarīrarūpaiḥ samāvṛtā rāmasahāyahetoḥ

20. rāmasahāyahetoḥ bhūḥ meghavṛndaacalakūṭakalpaiḥ mahābalaiḥ
bhīmaśarīrarūpaiḥ taiḥ vānarayūthapālaiḥ samāvṛtā babhūva

20. For the sake of assisting Rama, the earth was completely covered by those exceedingly strong leaders of monkey hordes, whose terrifying forms resembled masses of clouds and mountain peaks.

Words meanings summery:

• तैः (taiḥ) - by them, by those

• मेघवृन्दअचलकूटकल्पैः (meghavṛndaacalakūṭakalpaiḥ) - like masses of clouds and mountain peaks

• महाबलैः (mahābalaiḥ) - exceedingly strong, of great strength

• वानरयूथपालैः (vānarayūthapālaiḥ) - by the leaders of the monkey hordes

• बभूव (babhūva) - became, came to be, was

• भूः (bhūḥ) - the earth

• भीमशरीररूपैः (bhīmaśarīrarūpaiḥ) - with terrifying bodily forms

• समावृता (samāvṛtā) - completely covered, surrounded

• रामसहायहेतोः (rāmasahāyahetoḥ) - for the sake of Rama's assistance

Words meanings and morphology

तैः (taiḥ) - by them, by those

(pronoun)

Instrumental, masculine, plural of tad

tad - that, those

मेघवृन्दअचलकूटकल्पैः (meghavṛndaacalakūṭakalpaiḥ) - like masses of clouds and mountain peaks

(adjective)

Instrumental, masculine, plural of meghavṛndaacalakūṭakalpa

meghavṛndaacalakūṭakalpa - resembling masses of clouds and mountain peaks

Compound type : bahuvrihi (meghavṛndaacalakūṭa+kalpa)

• meghavṛndaacalakūṭa – masses of clouds and mountain peaks
  noun (masculine)
• kalpa – like, resembling, similar to
  adjective (masculine)

महाबलैः (mahābalaiḥ) - exceedingly strong, of great strength

(adjective)

Instrumental, masculine, plural of mahābala

mahābala - very strong, mighty

Compound type : bahuvrihi (mahā+bala)

• mahā – great, mighty
  adjective
• bala – strength, power, force
  noun (neuter)

वानरयूथपालैः (vānarayūthapālaiḥ) - by the leaders of the monkey hordes

(noun)

Instrumental, masculine, plural of vānarayūthapāla

vānarayūthapāla - leader of a troop of monkeys

Compound type : tatpurusha (vānara+yūthapāla)

• vānara – monkey
  noun (masculine)
• yūthapāla – leader of a troop or herd
  noun (masculine)

बभूव (babhūva) - became, came to be, was

(verb)

3rd person , singular, active, perfect (lit) of bhū

Root: bhū (class 1)

भूः (bhūḥ) - the earth

(noun)

Nominative, feminine, singular of bhū

bhū - earth, ground, world

भीमशरीररूपैः (bhīmaśarīrarūpaiḥ) - with terrifying bodily forms

(adjective)

Instrumental, masculine, plural of bhīmaśarīrarūpa

bhīmaśarīrarūpa - having a terrifying bodily form

Compound type : bahuvrihi (bhīma+śarīrarūpa)

• bhīma – terrifying, dreadful
  adjective
  Root: bhī (class 3)
• śarīrarūpa – bodily form
  noun (neuter)

समावृता (samāvṛtā) - completely covered, surrounded

(adjective)

Nominative, feminine, singular of samāvṛta

samāvṛta - covered, surrounded, encircled

Past Passive Participle

Derived from verb root vṛ (to cover, enclose) with prefixes sam- and ā-

Prefixes: sam+ā

Root: vṛ (class 5)

रामसहायहेतोः (rāmasahāyahetoḥ) - for the sake of Rama's assistance

(noun)

Genitive, masculine, singular of rāmasahāyahetu

rāmasahāyahetu - cause/reason for Rama's help

Compound type : tatpurusha (rāmasahāya+hetu)

• rāmasahāya – Rama's help or assistance
  noun (masculine)
• hetu – cause, reason, sake
  noun (masculine)