वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-3, chapter-8, verse-7

प्रतिज्ञातस्त्वया वीर दण्डकारण्यवासिनाम् ।
ऋषीणां रक्षणार्थाय वधः संयति रक्षसाम् ॥७॥

7. pratijñātastvayā vīra daṇḍakāraṇyavāsinām ,
ṛṣīṇāṃ rakṣaṇārthāya vadhaḥ saṃyati rakṣasām.

7. pratijñātaḥ tvayā vīra daṇḍakāraṇya-vāsinām
ṛṣīṇām rakṣaṇa-arthāya vadhaḥ saṃyati rakṣasām

7. vīra tvayā daṇḍakāraṇya-vāsinām ṛṣīṇām
rakṣaṇa-arthāya saṃyati rakṣasām vadhaḥ pratijñātaḥ

7. O hero, you have pledged to slay the Rākṣasas in battle for the protection of the sages (ṛṣi) dwelling in the Daṇḍakāraṇya forest.

Words meanings summery:

• प्रतिज्ञातः (pratijñātaḥ) - pledged, promised, vowed

• त्वया (tvayā) - by you

• वीर (vīra) - O hero

• दण्डकारण्य-वासिनाम् (daṇḍakāraṇya-vāsinām) - of those dwelling in Daṇḍakāraṇya

• ऋषीणाम् (ṛṣīṇām) - of the sages

• रक्षण-अर्थाय (rakṣaṇa-arthāya) - for the purpose of protection, for protection

• वधः (vadhaḥ) - slaying, killing, destruction

• संयति (saṁyati) - in battle, in conflict

• रक्षसाम् (rakṣasām) - of the Rākṣasas (demons)

Words meanings and morphology

प्रतिज्ञातः (pratijñātaḥ) - pledged, promised, vowed

(adjective)

Nominative, masculine, singular of pratijñāta

pratijñāta - promised, agreed, acknowledged

Past Passive Participle

From root jñā with prefix prati + kta suffix

Prefix: prati

Root: jñā (class 9)

त्वया (tvayā) - by you

(pronoun)

Instrumental, singular of tvad

tvad - you (pronoun)

वीर (vīra) - O hero

(noun)

Vocative, masculine, singular of vīra

vīra - hero, brave man, warrior

दण्डकारण्य-वासिनाम् (daṇḍakāraṇya-vāsinām) - of those dwelling in Daṇḍakāraṇya

(noun)

Genitive, masculine, plural of daṇḍakāraṇya-vāsin

daṇḍakāraṇya-vāsin - dweller in Daṇḍakāraṇya forest

Compound type : tatpuruṣa (daṇḍakāraṇya+vāsin)

• daṇḍakāraṇya – Daṇḍaka forest (proper noun)
  proper noun (neuter)
• vāsin – dweller, inhabitant, residing
  adjective (masculine)
  From root vas + ṇin suffix
  Root: vas (class 1)

Note: Refers to the sages dwelling in the forest.

ऋषीणाम् (ṛṣīṇām) - of the sages

(noun)

Genitive, masculine, plural of ṛṣi

ṛṣi - sage, seer, inspired poet

Root: ṛṣ

रक्षण-अर्थाय (rakṣaṇa-arthāya) - for the purpose of protection, for protection

(noun)

Dative, masculine, singular of rakṣaṇa-artha

rakṣaṇa-artha - for the sake of protection, for protection

Compound type : tatpuruṣa (rakṣaṇa+artha)

• rakṣaṇa – protecting, guarding, preservation
  noun (neuter)
  Verbal Noun
  From root rakṣ + ana suffix
  Root: rakṣ (class 1)
• artha – purpose, aim, meaning, wealth
  noun (masculine)

वधः (vadhaḥ) - slaying, killing, destruction

(noun)

Nominative, masculine, singular of vadha

vadha - slaying, killing, striking

From root han (via vadha)

Root: han (class 2)

संयति (saṁyati) - in battle, in conflict

(noun)

Locative, feminine, singular of saṃyati

saṁyati - battle, encounter, restraint, control

From root yam with prefix sam

Prefix: sam

Root: yam (class 1)

रक्षसाम् (rakṣasām) - of the Rākṣasas (demons)

(noun)

Genitive, neuter, plural of rakṣas

rakṣas - a Rākṣasa, demon, evil spirit