महाभारतः mahābhārataḥ - book-3, chapter-109, verse-1

वैशंपायन उवाच ।
ततः प्रयातः कौन्तेयः क्रमेण भरतर्षभ ।
नन्दामपरनन्दां च नद्यौ पापभयापहे ॥१॥

1. vaiśaṁpāyana uvāca ,
tataḥ prayātaḥ kaunteyaḥ krameṇa bharatarṣabha ,
nandāmaparanandāṁ ca nadyau pāpabhayāpahe.

1. vaiśaṃpāyanaḥ uvāca tataḥ prayātaḥ kaunteyaḥ krameṇa
bharatarṣabha nandām aparanandām ca nadyau pāpabhayāpahe

1. Vaiśampāyana said, "Then, O best among the Bhāratas, the son of Kunti (Arjuna) proceeded sequentially to the two rivers, Nanda and Aparanandā, which remove the fear of sin."

Words meanings summery:

• वैशंपायनः (vaiśaṁpāyanaḥ) - Vaiśampāyana, the narrator of the Mahābhārata, addresses King Janamejaya. (Vaiśampāyana)

• उवाच (uvāca) - said, referring to Vaiśampāyana's narration. (said, spoke)

• ततः (tataḥ) - then, indicating a sequence of events. (then, thence, afterwards)

• प्रयातः (prayātaḥ) - proceeded, describing Arjuna's movement. (gone forth, departed, proceeded)

• कौन्तेयः (kaunteyaḥ) - Arjuna, son of Kunti. (son of Kunti)

• क्रमेण (krameṇa) - gradually, indicating the manner of Arjuna's journey. (by sequence, in order, gradually)

• भरतर्षभ (bharatarṣabha) - An address to King Janamejaya by Vaiśampāyana. (O bull of Bharatas, O best of Bharatas)

• नन्दाम् (nandām) - The river Nanda. (Nanda (name of a river))

• अपरनन्दाम् (aparanandām) - The river Aparanandā. (Aparanandā (name of a river))

• च (ca) - connects Nanda and Aparanandā. (and)

• नद्यौ (nadyau) - refers to Nanda and Aparanandā. (two rivers)

• पापभयापहे (pāpabhayāpahe) - Describes the beneficial nature of the two rivers. (removing the fear of sin, dispelling the terror of evil)

Words meanings and morphology

वैशंपायनः (vaiśaṁpāyanaḥ) - Vaiśampāyana, the narrator of the Mahābhārata, addresses King Janamejaya. (Vaiśampāyana)

(proper noun)

Nominative, masculine, singular of vaiśaṃpāyana

vaiśaṁpāyana - Vaiśampāyana (name of a sage, student of Vyāsa)

उवाच (uvāca) - said, referring to Vaiśampāyana's narration. (said, spoke)

(verb)

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

Perfect tense, 3rd person singular

Root: vac (class 2)

ततः (tataḥ) - then, indicating a sequence of events. (then, thence, afterwards)

(indeclinable)

प्रयातः (prayātaḥ) - proceeded, describing Arjuna's movement. (gone forth, departed, proceeded)

(adjective)

Nominative, masculine, singular of prayāta

prayāta - gone forth, departed, set out

Past Passive Participle

Derived from root 'yā' (to go) with prefix 'pra'

Prefix: pra

Root: yā (class 2)

Note: Used substantively or as a predicate adjective with an implied 'was'.

कौन्तेयः (kaunteyaḥ) - Arjuna, son of Kunti. (son of Kunti)

(proper noun)

Nominative, masculine, singular of kaunteya

kaunteya - son of Kunti, Arjuna

derived from Kunti + ḍhak (patronymic suffix)

क्रमेण (krameṇa) - gradually, indicating the manner of Arjuna's journey. (by sequence, in order, gradually)

(noun)

Instrumental, masculine, singular of krama

krama - step, sequence, order, method

Root: kram (class 1)

भरतर्षभ (bharatarṣabha) - An address to King Janamejaya by Vaiśampāyana. (O bull of Bharatas, O best of Bharatas)

(compound)

Compound type : tatpuruṣa (bharata+ṛṣabha)

• bharata – descendant of Bharata, a king
  proper noun (masculine)
• ṛṣabha – bull, chief, best
  noun (masculine)

नन्दाम् (nandām) - The river Nanda. (Nanda (name of a river))

(proper noun)

Accusative, feminine, singular of nandā

nandā - Nanda (a proper name, often of rivers)

Note: Refers to one of the two rivers.

अपरनन्दाम् (aparanandām) - The river Aparanandā. (Aparanandā (name of a river))

(proper noun)

Accusative, feminine, singular of aparanandā

aparanandā - Aparanandā (a proper name, often of rivers)

Compound type : tatpuruṣa (apara+nandā)

• apara – other, another, posterior, western
  adjective (masculine)
• nandā – Nanda (a proper name, often of rivers)
  proper noun (feminine)

Note: Refers to the second of the two rivers.

च (ca) - connects Nanda and Aparanandā. (and)

(indeclinable)

नद्यौ (nadyau) - refers to Nanda and Aparanandā. (two rivers)

(noun)

Accusative, feminine, dual of nadī

nadī - river

पापभयापहे (pāpabhayāpahe) - Describes the beneficial nature of the two rivers. (removing the fear of sin, dispelling the terror of evil)

(adjective)

Accusative, feminine, dual of pāpabhayāpaha

pāpabhayāpaha - removing fear of sin, dispelling evil

Compound type : tatpuruṣa (pāpa+bhaya+apaha)

• pāpa – sin, evil, wicked
  noun (neuter)
• bhaya – fear, terror, dread
  noun (neuter)
  Root: bhī (class 3)
• apaha – removing, taking away, destroying
  adjective (masculine)
  Derived from root 'han' (to strike, destroy) with prefix 'apa'
  Prefix: apa
  Root: han (class 2)

Note: Adjective modifying 'nadyau'.