महाभारतः mahābhārataḥ - book-14, chapter-90, verse-16

पवित्रं परमं ह्येतत्पावनानां च पावनम् ।
यदश्वमेधावभृथं प्राप्स्यसे कुरुनन्दन ॥१६॥

16. pavitraṁ paramaṁ hyetatpāvanānāṁ ca pāvanam ,
yadaśvamedhāvabhṛthaṁ prāpsyase kurunandana.

16. pavitram paramam hi etat pāvanānām ca pāvanam |
yat aśvamedha avabhṛtham prāpsyase kurunandana

16. kurunandana hi etat paramam pāvanānām ca
pāvanam yat aśvamedha avabhṛtham prāpsyase

16. For this is the supreme purifier, indeed the holiest of purifiers, that you, O delight of the Kurus (kurunandana), will attain the ritual bath (avabhṛtha) of the horse-Vedic ritual (aśvamedha).

Words meanings summery:

• पवित्रम् (pavitram) - the purifier (purifier, holy, pure)

• परमम् (paramam) - the supreme (supreme, highest, excellent)

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

• एतत् (etat) - this (referring to the aśvamedha avabhṛtha) (this)

• पावनानाम् (pāvanānām) - of purifiers (of purifiers, among purifiers)

• च (ca) - and, even (and, also, even)

• पावनम् (pāvanam) - the purifier (purifier, purifying)

• यत् (yat) - that (conjunction introducing a clause) (which, that (conjunction))

• अश्वमेध (aśvamedha) - of the horse-Vedic ritual (aśvamedha) (horse-Vedic ritual (yajña))

• अवभृथम् (avabhṛtham) - the ritual bath (avabhṛtha) (ritual bath, concluding ablution)

• प्राप्स्यसे (prāpsyase) - you will attain (you will obtain, you will reach, you will attain)

• कुरुनन्दन (kurunandana) - O delight of the Kurus, addressing the king (O delight of the Kurus, O son of Kuru)

Words meanings and morphology

पवित्रम् (pavitram) - the purifier (purifier, holy, pure)

(noun)

Nominative, neuter, singular of pavitra

pavitra - purifier, holy, sacred, pure, auspicious

Root: pū (class 1)

परमम् (paramam) - the supreme (supreme, highest, excellent)

(adjective)

Nominative, neuter, singular of parama

parama - supreme, highest, utmost, excellent, ultimate

Note: modifies pavitram

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

(indeclinable)

एतत् (etat) - this (referring to the aśvamedha avabhṛtha) (this)

(pronoun)

Nominative, neuter, singular of etad

etad - this, that

पावनानाम् (pāvanānām) - of purifiers (of purifiers, among purifiers)

(noun)

Genitive, neuter, plural of pāvana

pāvana - purifying, purificatory, purifier

Root: pū (class 1)

च (ca) - and, even (and, also, even)

(indeclinable)

पावनम् (pāvanam) - the purifier (purifier, purifying)

(noun)

Nominative, neuter, singular of pāvana

pāvana - purifying, purificatory, purifier

Root: pū (class 1)

यत् (yat) - that (conjunction introducing a clause) (which, that (conjunction))

(pronoun)

Nominative, neuter, singular of yad

yad - which, what, that (relative pronoun, conjunction)

Note: Refers to the act of attaining the avabhṛtha

अश्वमेध (aśvamedha) - of the horse-Vedic ritual (aśvamedha) (horse-Vedic ritual (yajña))

(noun)

Genitive, masculine, singular of aśvamedha

aśvamedha - horse-Vedic ritual (yajña), a royal consecration ceremony involving a horse

Compound type : tatpuruṣa (aśva+medha)

• aśva – horse
  noun (masculine)
• medha – Vedic ritual, oblation
  noun (masculine)

Note: First part of aśvamedhāvabhṛtham compound. The form is stem form.

अवभृथम् (avabhṛtham) - the ritual bath (avabhṛtha) (ritual bath, concluding ablution)

(noun)

Accusative, neuter, singular of avabhṛtha

avabhṛtha - concluding ceremonial bath, ritual ablution after a Vedic ritual (yajña)

Derived from root bhṛ (to bear) with prefix ava and suffix -tha

Prefix: ava

Root: bhṛ (class 3)

प्राप्स्यसे (prāpsyase) - you will attain (you will obtain, you will reach, you will attain)

(verb)

2nd person , singular, active, future (lṛṭ) of pra-āp

future tense

Second person singular, future tense, ātmanepada

Prefix: pra

Root: āp (class 5)

Note: The -se ending is for Ātmanepada verbs

कुरुनन्दन (kurunandana) - O delight of the Kurus, addressing the king (O delight of the Kurus, O son of Kuru)

(proper noun)

Vocative, masculine, singular of kurunandana

kurunandana - delight of the Kurus, son of Kuru (a descriptive epithet for kings of the Kuru dynasty)

Compound type : tatpuruṣa (kuru+nandana)

• kuru – name of an ancient king or dynasty, the Kuru lineage
  proper noun (masculine)
• nandana – son, delight, gladdener
  noun (masculine)
  From root nand (to rejoice)
  Root: nand (class 1)