योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-14, verse-29

अथ शान्तजपो राम स समङ्गातटे द्विजः ।
तावुवाच वचः शान्तममृतस्यन्दसुन्दरम् ॥ २९ ॥

atha śāntajapo rāma sa samaṅgātaṭe dvijaḥ ,
tāvuvāca vacaḥ śāntamamṛtasyandasundaram 29

29. atha śāntajapaḥ rāma saḥ samaṅgātaṭe dvijaḥ
tau uvāca vacaḥ śāntam amṛtasyandanasundaram

29. atha rāma saḥ dvijaḥ śāntajapaḥ samaṅgātaṭe
tau śāntam amṛtasyandanasundaram vacaḥ uvāca

29. Then, O Rama, that brahmin, who had completed his recitation (japa), spoke to those two (Rama and Lakṣmaṇa) on the bank of the Samaṅgā river. His words were peaceful and beautiful, like a stream of nectar.

Words meanings summery:

• अथ (atha) - then, now, moreover

• शान्तजपः (śāntajapaḥ) - who had completed his recitation (japa) (one whose chanting is quieted, one who has finished his japa)

• राम (rāma) - O Rama

• सः (saḥ) - he, that

• समङ्गातटे (samaṅgātaṭe) - on the bank of the Samaṅgā

• द्विजः (dvijaḥ) - the brahmin (twice-born (a brahmin, kshatriya, or vaishya), brahmin)

• तौ (tau) - to Rama and Lakṣmaṇa (to those two (masculine))

• उवाच (uvāca) - said, spoke

• वचः (vacaḥ) - speech, words

• शान्तम् (śāntam) - peaceful, calm, tranquil

• अमृतस्यन्दनसुन्दरम् (amṛtasyandanasundaram) - beautiful with a stream of nectar, nectar-flowing and beautiful

Words meanings and morphology

अथ (atha) - then, now, moreover

(indeclinable)

शान्तजपः (śāntajapaḥ) - who had completed his recitation (japa) (one whose chanting is quieted, one who has finished his japa)

(adjective)

Nominative, masculine, singular of śāntajapa

śāntajapa - one whose chanting is quieted

Compound type : bahuvrīhi (śānta+japa)

• śānta – quieted, calmed, peaceful
  participle (masculine)
  Past Passive Participle
  Root: śam (class 4)
• japa – muttering, recitation of mantras
  noun (masculine)

राम (rāma) - O Rama

(proper noun)

Vocative, masculine, singular of rāma

rāma - Rama (proper name), pleasing, beautiful

सः (saḥ) - he, that

(pronoun)

Nominative, masculine, singular of tad

tad - that, he/she/it

समङ्गातटे (samaṅgātaṭe) - on the bank of the Samaṅgā

(noun)

Locative, masculine, singular of samaṅgātaṭa

samaṅgātaṭa - bank of the Samaṅgā (river)

Compound type : tatpuruṣa (samaṅgā+taṭa)

• samaṅgā – Samaṅgā (name of a river)
  proper noun (feminine)
• taṭa – bank, shore, slope
  noun (masculine)

द्विजः (dvijaḥ) - the brahmin (twice-born (a brahmin, kshatriya, or vaishya), brahmin)

(noun)

Nominative, masculine, singular of dvija

dvija - twice-born (a brahmin, kshatriya, or vaishya), brahmin, bird, tooth

तौ (tau) - to Rama and Lakṣmaṇa (to those two (masculine))

(pronoun)

Accusative, masculine, dual of tad

tad - that, he/she/it

उवाच (uvāca) - said, spoke

(verb)

3rd person , singular, active, past perfect (lit) of vac

Root: vac (class 2)

वचः (vacaḥ) - speech, words

(noun)

Accusative, neuter, singular of vacas

vacas - speech, word

शान्तम् (śāntam) - peaceful, calm, tranquil

(adjective)

Accusative, neuter, singular of śānta

śānta - peaceful, calm, tranquil

Past Passive Participle

Root: śam (class 4)

अमृतस्यन्दनसुन्दरम् (amṛtasyandanasundaram) - beautiful with a stream of nectar, nectar-flowing and beautiful

(adjective)

Accusative, neuter, singular of amṛtasyandanasundara

amṛtasyandanasundara - beautiful like a stream of nectar

Compound type : karmadhāraya (amṛta+syandana+sundara)

• amṛta – nectar, immortality
  noun (neuter)
• syandana – flowing, stream, current
  noun (neuter)
  Root: syand (class 1)
• sundara – beautiful, handsome, lovely
  adjective (neuter)