वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-2, chapter-20, verse-21

पूर्वराजर्षिवृत्त्या हि वनवासो विधीयते ।
प्रजा निक्षिप्य पुत्रेषु पुत्रवत् परिपालने ॥२१॥

21. pūrvarājarṣivṛttyā hi vanavāso vidhīyate ,
prajā nikṣipya putreṣu putravat paripālane.

21. pūrvarājarṣivṛttyā hi vanavāsaḥ vidhīyate
prajā nikṣipya putreṣu putravat paripālane

21. hi pūrvarājarṣivṛttyā putreṣu prajā nikṣipya
putravat paripālane vanavāsaḥ vidhīyate

21. Indeed, forest dwelling is enjoined according to the practice of ancient royal sages (rājarṣis), who, having entrusted the subjects to their sons, ensure their protection as if they were their own children.

Words meanings summery:

• पूर्वराजर्षिवृत्त्या (pūrvarājarṣivṛttyā) - by the practice/conduct of ancient royal sages

• हि (hi) - indeed, surely, because, for

• वनवासः (vanavāsaḥ) - forest dwelling, forest exile

• विधीयते (vidhīyate) - is ordained, is performed, is prescribed

• प्रजा (prajā) - subjects, people, offspring

• निक्षिप्य (nikṣipya) - having entrusted, having deposited

• पुत्रेषु (putreṣu) - in/to the sons

• पुत्रवत् (putravat) - like sons, like children

• परिपालने (paripālane) - in the protection, in the governance

Words meanings and morphology

पूर्वराजर्षिवृत्त्या (pūrvarājarṣivṛttyā) - by the practice/conduct of ancient royal sages

(noun)

Instrumental, feminine, singular of pūrvarājarṣivṛtti

pūrvarājarṣivṛtti - the conduct or practice of ancient royal sages

Compound type : tatpuruṣa (pūrva+rājarṣi+vṛtti)

• pūrva – ancient, former, preceding
  adjective (masculine)
• rājarṣi – royal sage, king who is also a sage
  noun (masculine)
• vṛtti – conduct, practice, mode of life, course of action
  noun (feminine)
  Derived from the root √vṛt (to turn, exist)
  Root: vṛt (class 1)

हि (hi) - indeed, surely, because, for

(indeclinable)

वनवासः (vanavāsaḥ) - forest dwelling, forest exile

(noun)

Nominative, masculine, singular of vanavāsa

vanavāsa - dwelling in the forest, forest exile

Compound type : tatpuruṣa (vana+vāsa)

• vana – forest, wood, grove
  noun (neuter)
• vāsa – dwelling, residence, abode
  noun (masculine)
  Root: vas (class 1)

विधीयते (vidhīyate) - is ordained, is performed, is prescribed

(verb)

3rd person , singular, passive, present (laṭ) of √dhā

Prefix: vi

Root: dhā (class 3)

प्रजा (prajā) - subjects, people, offspring

(noun)

Accusative, feminine, plural of prajā

prajā - offspring, progeny, subjects, people, creation

निक्षिप्य (nikṣipya) - having entrusted, having deposited

(indeclinable)

Absolutive/Gerund

Formed from the root √kṣip (to throw) with the prefix ni

Prefix: ni

Root: kṣip (class 6)

पुत्रेषु (putreṣu) - in/to the sons

(noun)

Locative, masculine, plural of putra

putra - son, child

पुत्रवत् (putravat) - like sons, like children

(indeclinable)

Adverbial suffix -vat added to `putra`

परिपालने (paripālane) - in the protection, in the governance

(noun)

Locative, neuter, singular of paripālana

paripālana - protection, preservation, governance, fostering

Derived from the root √pā (to protect, govern) with the prefix pari

Prefix: pari

Root: pā (class 2)