वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-6, chapter-73, verse-12

ऋक्षवानरमुख्यैश्च महाकायैर्महाबलैः ।
रक्षसां वध्यमानानां महद्भयमजायत ॥१२॥

12. ṛkṣavānaramukhyaiśca mahākāyairmahābalaiḥ ,
rakṣasāṃ vadhyamānānāṃ mahadbhayamajāyata.

12. ṛkṣa-vānara-mukhyaiḥ ca mahā-kāyaiḥ mahā-balaiḥ
rakṣasām vadhyamānānām mahat bhayam ajāyata

12. mahā-kāyaiḥ mahā-balaiḥ ṛkṣa-vānara-mukhyaiḥ
ca vadhyamānānām rakṣasām mahat bhayam ajāyata

12. By the chief bears and monkeys, who were colossal and immensely powerful, great fear arose among the rākṣasas who were being slain.

Words meanings summery:

• ऋक्ष-वानर-मुख्यैः (ṛkṣa-vānara-mukhyaiḥ) - by the chief bears and monkeys

• च (ca) - and, also

• महा-कायैः (mahā-kāyaiḥ) - by those with great bodies, by colossal ones

• महा-बलैः (mahā-balaiḥ) - by those with great strength, by powerful ones

• रक्षसाम् (rakṣasām) - of the rākṣasas, for the rākṣasas

• वध्यमानानाम् (vadhyamānānām) - of those being slain, of those being killed

• महत् (mahat) - great, large, mighty

• भयम् (bhayam) - fear, dread

• अजायत (ajāyata) - it arose, it was born, it happened

Words meanings and morphology

ऋक्ष-वानर-मुख्यैः (ṛkṣa-vānara-mukhyaiḥ) - by the chief bears and monkeys

(noun)

Instrumental, masculine, plural of ṛkṣa-vānara-mukhya

ṛkṣa-vānara-mukhya - chief of bears and monkeys

Compound type : tatpurusha (ṛkṣa+vānara+mukhya)

• ṛkṣa – bear
  noun (masculine)
• vānara – monkey
  noun (masculine)
• mukhya – chief, principal, foremost
  adjective (masculine)

च (ca) - and, also

(indeclinable)

महा-कायैः (mahā-kāyaiḥ) - by those with great bodies, by colossal ones

(adjective)

Instrumental, masculine, plural of mahā-kāya

mahā-kāya - having a large body, colossal

Compound type : bahuvrihi (mahat+kāya)

• mahat – great, large, mighty
  adjective (masculine)
• kāya – body
  noun (masculine)

महा-बलैः (mahā-balaiḥ) - by those with great strength, by powerful ones

(adjective)

Instrumental, masculine, plural of mahā-bala

mahā-bala - having great strength, mighty, powerful

Compound type : bahuvrihi (mahat+bala)

• mahat – great, large, mighty
  adjective (masculine)
• bala – strength, power
  noun (neuter)

रक्षसाम् (rakṣasām) - of the rākṣasas, for the rākṣasas

(noun)

Genitive, neuter, plural of rakṣas

rakṣas - a rākṣasa, a demon

वध्यमानानाम् (vadhyamānānām) - of those being slain, of those being killed

(participle)

Genitive, masculine, plural of vadhyamāna

vadhyamāna - being slain, being killed

Present Passive Participle

Derived from root √vadh (to strike, kill) in passive form with śānac suffix (or from √han via vadha-stem)

Root: vadh (class 1)

महत् (mahat) - great, large, mighty

(adjective)

Nominative, neuter, singular of mahat

mahat - great, large, mighty

भयम् (bhayam) - fear, dread

(noun)

Nominative, neuter, singular of bhaya

bhaya - fear, dread

अजायत (ajāyata) - it arose, it was born, it happened

(verb)

3rd person , singular, middle, imperfect (laṅ) of jan

Imperfect, 3rd person singular

Root √jan, imperfect tense (laṅ), ātmanepada, 3rd singular form

Root: jan (class 4)