वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-5, chapter-28, verse-7

अहमाश्वासयाम्येनां पूर्णचन्द्रनिभाननाम् ।
अदृष्टदुःखां दुःखस्य न ह्यन्तमधिगच्छतीम् ॥७॥

7. ahamāśvāsayāmyenāṃ pūrṇacandranibhānanām ,
adṛṣṭaduḥkhāṃ duḥkhasya na hyantamadhigacchatīm.

7. aham āśvāsayāmi enām pūrṇacandranibhānanām
adṛṣṭaduḥkhām duḥkhasya na hi antam adhigacchatīm

7. aham pūrṇacandranibhānanām adṛṣṭaduḥkhām duḥkhasya
antam na hi adhigacchatīm enām āśvāsayāmi

7. I must reassure her, whose face resembles the full moon, who has not experienced suffering and therefore certainly does not comprehend its full extent.

Words meanings summery:

• अहम् (aham) - I, myself

• आश्वासयामि (āśvāsayāmi) - I reassure, I console

• एनाम् (enām) - refers to Sītā (her, this one (feminine))

• पूर्णचन्द्रनिभाननाम् (pūrṇacandranibhānanām) - describes Sītā (whose face is like the full moon)

• अदृष्टदुःखाम् (adṛṣṭaduḥkhām) - describes Sītā (who has not seen sorrow, inexperienced in suffering)

• दुःखस्य (duḥkhasya) - of sorrow, of suffering

• न (na) - not, no

• हि (hi) - indeed, certainly, for

• अन्तम् (antam) - end, limit, conclusion

• अधिगच्छतीम् (adhigacchatīm) - describes Sītā, refers to her not understanding the end of sorrow (reaching, attaining, understanding (feminine))

Words meanings and morphology

अहम् (aham) - I, myself

(pronoun)

Nominative, singular of aham

aham - I, myself

आश्वासयामि (āśvāsayāmi) - I reassure, I console

(verb)

1st person , singular, active, present (laṭ) of āśvāsay

causative present indicative

root śvas (to breathe) with prefix ā + causal suffix -aya + present active ending

Prefix: ā

Root: śvas (class 2)

एनाम् (enām) - refers to Sītā (her, this one (feminine))

(pronoun)

Accusative, feminine, singular of enad

enad - this, that

पूर्णचन्द्रनिभाननाम् (pūrṇacandranibhānanām) - describes Sītā (whose face is like the full moon)

(adjective)

Accusative, feminine, singular of pūrṇacandranibhānanā

pūrṇacandranibhānanā - having a face like the full moon

Compound type : bahuvrīhi (pūrṇa+candra+nibha+ānana)

• pūrṇa – full, complete
  adjective (neuter)
  past passive participle
  from root pṛ (to fill)
  Root: pṛ (class 9)
• candra – moon
  noun (masculine)
• nibha – like, resembling
  adjective (masculine)
• ānana – face, mouth
  noun (neuter)

अदृष्टदुःखाम् (adṛṣṭaduḥkhām) - describes Sītā (who has not seen sorrow, inexperienced in suffering)

(adjective)

Accusative, feminine, singular of adṛṣṭaduḥkhā

adṛṣṭaduḥkhā - who has not seen sorrow

Compound type : bahuvrīhi (a+dṛṣṭa+duḥkha)

• a – not, non-
  indeclinable
  negative prefix
• dṛṣṭa – seen, perceived
  adjective (neuter)
  past passive participle
  from root dṛś (to see)
  Root: dṛś (class 1)
• duḥkha – sorrow, suffering, misery
  noun (neuter)

दुःखस्य (duḥkhasya) - of sorrow, of suffering

(noun)

Genitive, neuter, singular of duḥkha

duḥkha - sorrow, suffering, misery

न (na) - not, no

(indeclinable)

हि (hi) - indeed, certainly, for

(indeclinable)

अन्तम् (antam) - end, limit, conclusion

(noun)

Accusative, masculine, singular of anta

anta - end, limit, boundary

अधिगच्छतीम् (adhigacchatīm) - describes Sītā, refers to her not understanding the end of sorrow (reaching, attaining, understanding (feminine))

(adjective)

Accusative, feminine, singular of adhigacchatī

adhigacchatī - reaching, attaining, understanding

present active participle

feminine accusative singular of adhigacchant, from root gam (to go) with prefix adhi

Prefix: adhi

Root: gam (class 1)

Note: Declines like a noun/adjective.