वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-3, chapter-41, verse-47

त्वचा प्रधानया ह्येष मृगो ऽद्य न भविष्यति ।
अप्रमत्तेन ते भाव्यमाश्रमस्थेन सीतया ॥४७॥

47. tvacā pradhānayā hyeṣa mṛgo'dya na bhaviṣyati ,
apramattena te bhāvyamāśramasthena sītayā.

47. tvacā pradhānayā hi eṣaḥ mṛgaḥ adya na bhaviṣyati
apramattena te bhāvyam āśramas_thena sītayā

47. hi eṣaḥ mṛgaḥ adya pradhānayā tvacā na bhaviṣyati
apramattena āśramas_thena te sītayā bhāvyam

47. Indeed, this deer will cease to exist today because of its excellent skin. You must remain vigilant while staying in the hermitage with Sita.

Words meanings summery:

• त्वचा (tvacā) - by the skin, with the skin

• प्रधानया (pradhānayā) - by the principal, by the excellent

• हि (hi) - indeed, surely, because

• एषः (eṣaḥ) - this (masculine singular)

• मृगः (mṛgaḥ) - deer, wild animal

• अद्य (adya) - today, now

• न (na) - not

• भविष्यति (bhaviṣyati) - will be, will exist

• अप्रमत्तेन (apramattena) - by the non-negligent one, by the vigilant one

• ते (te) - by you (singular)

• भाव्यम् (bhāvyam) - must be, should be, ought to be

• आश्रमस्_थेन (āśramas_thena) - by the one staying in the hermitage

• सीतया (sītayā) - with Sita, by Sita

Words meanings and morphology

त्वचा (tvacā) - by the skin, with the skin

(noun)

Instrumental, feminine, singular of tvac

tvac - skin, hide, bark

प्रधानया (pradhānayā) - by the principal, by the excellent

(adjective)

Instrumental, feminine, singular of pradhāna

pradhāna - chief, principal, excellent, important

Note: Agrees with 'tvacā'.

हि (hi) - indeed, surely, because

(indeclinable)

एषः (eṣaḥ) - this (masculine singular)

(pronoun)

Nominative, masculine, singular of etad

etad - this, that

मृगः (mṛgaḥ) - deer, wild animal

(noun)

Nominative, masculine, singular of mṛga

mṛga - deer, antelope, wild animal

अद्य (adya) - today, now

(indeclinable)

न (na) - not

(indeclinable)

भविष्यति (bhaviṣyati) - will be, will exist

(verb)

3rd person , singular, active, future (lṛṭ) of bhū

Root: bhū (class 1)

अप्रमत्तेन (apramattena) - by the non-negligent one, by the vigilant one

(adjective)

Instrumental, masculine, singular of apramatta

apramatta - vigilant, attentive, careful, not careless

Compound type : nañ-tatpuruṣa (a+pramatta)

• a – not, un-
  indeclinable
• pramatta – negligent, careless
  adjective (masculine)
  Past Passive Participle
  from pra-√mad (to be careless)
  Prefix: pra
  Root: mad (class 4)

ते (te) - by you (singular)

(pronoun)

Instrumental, singular of yuṣmad

yuṣmad - you

भाव्यम् (bhāvyam) - must be, should be, ought to be

(indeclinable)

Gerundive (kṛtya)

formed from √bhū + -tavya / -ya suffix (here implying obligation)

Root: bhū (class 1)

Note: Used impersonally.

आश्रमस्_थेन (āśramas_thena) - by the one staying in the hermitage

(adjective)

Instrumental, masculine, singular of āśramas_tha

āśramas_tha - staying in the hermitage, dwelling in the hermitage

Compound type : saptamī-tatpuruṣa (āśrama+stha)

• āśrama – hermitage, आश्रम
  noun (masculine)
• stha – standing, staying, located in
  adjective (masculine)
  agent noun/derivative
  from √sthā (to stand)
  Root: sthā (class 1)

सीतया (sītayā) - with Sita, by Sita

(proper noun)

Instrumental, feminine, singular of sītā

sītā - Sita (name of Rama's wife)