महाभारतः mahābhārataḥ - book-1, chapter-44, verse-21

स बाल एव तत्रस्थश्चरन्नमितबुद्धिमान् ।
गृहे पन्नगराजस्य प्रयत्नात्पर्यरक्ष्यत ॥२१॥

21. sa bāla eva tatrasthaścarannamitabuddhimān ,
gṛhe pannagarājasya prayatnātparyarakṣyata.

21. saḥ bālaḥ eva tatrasthaḥ caran amitabuddhimān
gṛhe pannagarājasya prayatnāt paryarakṣyata

21. He, remaining there as a child, wandering about, possessed of immeasurable intelligence, was carefully protected in the house of the Naga king.

Words meanings summery:

• सः (saḥ) - he (he, that)

• बालः (bālaḥ) - child (child, young boy)

• एव (eva) - as (a child) (indeed, only, just)

• तत्रस्थः (tatrasthaḥ) - remaining there (staying there, located there)

• चरन् (caran) - wandering about (moving, wandering, practicing)

• अमितबुद्धिमान् (amitabuddhimān) - possessed of immeasurable intelligence

• गृहे (gṛhe) - in the house (in the house, home)

• पन्नगराजस्य (pannagarājasya) - of the Naga king (of the king of serpents)

• प्रयत्नात् (prayatnāt) - with effort, carefully (from effort, carefully, assiduously)

• पर्यरक्ष्यत (paryarakṣyata) - was carefully protected (was protected, guarded)

Words meanings and morphology

सः (saḥ) - he (he, that)

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

बालः (bālaḥ) - child (child, young boy)

(noun)

Nominative, masculine, singular of bāla

bāla - child, young, inexperienced

एव (eva) - as (a child) (indeed, only, just)

(indeclinable)

तत्रस्थः (tatrasthaḥ) - remaining there (staying there, located there)

(adjective)

Nominative, masculine, singular of tatra-stha

tatra-stha - staying there

Compound type : upapada-tatpuruṣa (tatra+stha)

• tatra – there, in that place
  indeclinable
• stha – standing, staying, located
  adjective (masculine)
  kṛt suffix
  from root sthā
  Root: sthā (class 1)

Note: Refers to the child.

चरन् (caran) - wandering about (moving, wandering, practicing)

(participle)

Nominative, masculine, singular of carat

carat - moving, walking, practicing

present participle (active)

from root car + śatṛ suffix

Root: car (class 1)

Note: Refers to the child.

अमितबुद्धिमान् (amitabuddhimān) - possessed of immeasurable intelligence

(adjective)

Nominative, masculine, singular of amita-buddhi-mat

amita-buddhi-mat - having boundless wisdom

Compound type : bahuvrīhi (a+mita+buddhi+mat)

• a – not, un-
  indeclinable
• mita – measured, limited
  participle (neuter)
  past passive participle
  from root mā
  Root: mā (class 2)
• buddhi – intelligence, intellect
  noun (feminine)
• mat – possessing, having
  suffix (masculine)
  MatUP suffix indicating possession

Note: Refers to the child.

गृहे (gṛhe) - in the house (in the house, home)

(noun)

Locative, neuter, singular of gṛha

gṛha - house, home, dwelling

पन्नगराजस्य (pannagarājasya) - of the Naga king (of the king of serpents)

(noun)

Genitive, masculine, singular of pannaga-rāja

pannaga-rāja - king of serpents, Naga king

Compound type : ṣaṣṭhī-tatpuruṣa (pannaga+rāja)

• pannaga – serpent, snake (lit. 'moving on its belly')
  noun (masculine)
• rāja – king, ruler
  noun (masculine)

प्रयत्नात् (prayatnāt) - with effort, carefully (from effort, carefully, assiduously)

(noun)

Ablative, masculine, singular of prayatna

prayatna - effort, exertion, carefulness

action noun

from pra-yat

Prefix: pra

Root: yat (class 1)

Note: Used adverbially.

पर्यरक्ष्यत (paryarakṣyata) - was carefully protected (was protected, guarded)

(verb)

3rd person , singular, passive, past imperfect (laṅ) of rakṣ

Prefix: pari

Root: rakṣ (class 1)