महाभारतः mahābhārataḥ - book-13, chapter-10, verse-34

अथर्ववेदे वेदे च बभूवर्षिः सुनिश्चितः ।
कल्पप्रयोगे चोत्पन्ने ज्योतिषे च परं गतः ।
सख्ये चापि परा प्रीतिस्तयोश्चापि व्यवर्धत ॥३४॥

34. atharvavede vede ca babhūvarṣiḥ suniścitaḥ ,
kalpaprayoge cotpanne jyotiṣe ca paraṁ gataḥ ,
sakhye cāpi parā prītistayoścāpi vyavardhata.

34. atharvavede vede ca babhūva ṛṣiḥ
suniścitaḥ kalpaprayoge ca utpanne
jyotiṣe ca param gataḥ sakhye ca api
parā prītiḥ tayoḥ ca api vyavardhata

34. ṛṣiḥ atharvavede ca vede ca suniścitaḥ
babhūva ca kalpaprayoge utpanne ca
jyotiṣe param gataḥ ca api tayoḥ
sakhye parā prītiḥ ca api vyavardhata

34. One of them became a sage (ṛṣi) well-versed in the Atharva Veda and other (Vedic) texts. He also attained the highest proficiency in the developed applications of the Kalpa (ritual manuals) and in astronomy/astrology (jyotiṣa). Furthermore, their great affection for each other also grew.

Words meanings summery:

• अथर्ववेदे (atharvavede) - in the Atharva Veda

• वेदे (vede) - in (other) Vedic texts (in the Veda, in knowledge)

• च (ca) - and, also

• बभूव (babhūva) - he became, was

• ऋषिः (ṛṣiḥ) - sage, seer

• सुनिश्चितः (suniścitaḥ) - well-versed, highly proficient (well-ascertained, firmly established, highly proficient, very certain)

• कल्पप्रयोगे (kalpaprayoge) - in the application of ritual manuals (kalpa)

• च (ca) - and, also

• उत्पन्ने (utpanne) - in the developed (sciences) (arisen, produced, manifested, developed)

• ज्योतिषे (jyotiṣe) - in astronomy, in astrology, in the science of light/heavenly bodies

• च (ca) - and, also

• परम् (param) - to the highest point of proficiency (supreme, highest, ultimate; to the highest degree)

• गतः (gataḥ) - attained (the highest proficiency) (gone, reached, attained)

• सख्ये (sakhye) - in friendship

• च (ca) - and, also

• अपि (api) - also, even

• परा (parā) - supreme, great, excellent

• प्रीतिः (prītiḥ) - affection, love, joy, pleasure

• तयोः (tayoḥ) - of the prince and the sage (of those two)

• च (ca) - and, also

• अपि (api) - also, even

• व्यवर्धत (vyavardhata) - it grew, increased

Words meanings and morphology

अथर्ववेदे (atharvavede) - in the Atharva Veda

(noun)

Locative, masculine, singular of atharvaveda

atharvaveda - the Atharva Veda (one of the four Vedas)

Compound type : tatpurusha (atharvan+veda)

• atharvan – name of a Vedic sage; referring to the Atharva Veda
  proper noun (masculine)
• veda – knowledge, sacred knowledge, Veda
  noun (masculine)
  From root vid
  Root: vid (class 2)

वेदे (vede) - in (other) Vedic texts (in the Veda, in knowledge)

(noun)

Locative, masculine, singular of veda

veda - knowledge, sacred knowledge, Veda

From root vid

Root: vid (class 2)

च (ca) - and, also

(indeclinable)

बभूव (babhūva) - he became, was

(verb)

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

Root: bhū (class 1)

ऋषिः (ṛṣiḥ) - sage, seer

(noun)

Nominative, masculine, singular of ṛṣi

ṛṣi - a Vedic sage, an inspired poet or seer, a saint

Root: ṛṣ

सुनिश्चितः (suniścitaḥ) - well-versed, highly proficient (well-ascertained, firmly established, highly proficient, very certain)

(adjective)

Nominative, masculine, singular of suniścita

suniścita - well ascertained, very certain, highly determined, highly proficient

Compound type : bahuvrihi (implied prefix) (su+niścita)

• su – good, well, excellent, very
  indeclinable
• niścita – ascertained, determined, certain, fixed
  adjective (masculine)
  Past Passive Participle
  From root ci with prefix ni
  Prefix: ni
  Root: ci (class 5)

कल्पप्रयोगे (kalpaprayoge) - in the application of ritual manuals (kalpa)

(noun)

Locative, masculine, singular of kalpaprayoga

kalpaprayoga - application of a kalpa (ritual manual)

Compound type : tatpurusha (kalpa+prayoga)

• kalpa – a kalpa (one of the Vedāṅgas dealing with ritual procedure), rule, ordinance
  noun (masculine)
  Root: kḷp (class 1)
• prayoga – application, use, method, performance
  noun (masculine)
  From root yuj with prefix pra
  Prefix: pra
  Root: yuj (class 7)

च (ca) - and, also

(indeclinable)

उत्पन्ने (utpanne) - in the developed (sciences) (arisen, produced, manifested, developed)

(adjective)

Locative, masculine, singular of utpanna

utpanna - born, produced, arisen, manifested, developed

Past Passive Participle

From root pad with prefixes ut

Prefix: ut

Root: pad (class 4)

ज्योतिषे (jyotiṣe) - in astronomy, in astrology, in the science of light/heavenly bodies

(noun)

Locative, neuter, singular of jyotiṣa

jyotiṣa - astronomy, astrology, the science of heavenly bodies, light

च (ca) - and, also

(indeclinable)

परम् (param) - to the highest point of proficiency (supreme, highest, ultimate; to the highest degree)

(adjective)

Accusative, neuter, singular of para

para - supreme, highest, ultimate, excellent, best; other, subsequent

Note: Used adverbially here.

गतः (gataḥ) - attained (the highest proficiency) (gone, reached, attained)

(adjective)

Nominative, masculine, singular of gata

gata - gone, moved, reached, attained, obtained

Past Passive Participle

From root gam

Root: gam (class 1)

सख्ये (sakhye) - in friendship

(noun)

Locative, neuter, singular of sakhya

sakhya - friendship, alliance

From sakhi (friend)

च (ca) - and, also

(indeclinable)

अपि (api) - also, even

(indeclinable)

परा (parā) - supreme, great, excellent

(adjective)

Nominative, feminine, singular of para

para - supreme, highest, excellent, best

प्रीतिः (prītiḥ) - affection, love, joy, pleasure

(noun)

Nominative, feminine, singular of prīti

prīti - affection, love, pleasure, joy, satisfaction

From root prī

Root: prī (class 9)

तयोः (tayoḥ) - of the prince and the sage (of those two)

(pronoun)

Genitive, masculine, dual of tad

tad - that, he, she, it

च (ca) - and, also

(indeclinable)

अपि (api) - also, even

(indeclinable)

व्यवर्धत (vyavardhata) - it grew, increased

(verb)

3rd person , singular, middle, imperfect (laṅ) of vyavardhata

Prefix: vi

Root: vṛdh (class 1)