महाभारतः mahābhārataḥ - book-13, chapter-40, verse-21

रक्षाविधानं मनसा स विचिन्त्य महातपाः ।
आहूय दयितं शिष्यं विपुलं प्राह भार्गवम् ॥२१॥

21. rakṣāvidhānaṁ manasā sa vicintya mahātapāḥ ,
āhūya dayitaṁ śiṣyaṁ vipulaṁ prāha bhārgavam.

21. rakṣāvidhānaṃ manasā saḥ vicintya mahātapāḥ
āhūya dayitaṃ śiṣyaṃ vipulaṃ prāha bhārgavam

21. saḥ mahātapāḥ manasā rakṣāvidhānaṃ vicintya
dayitaṃ śiṣyaṃ vipulaṃ bhārgavam āhūya prāha

21. Having thought through a protective arrangement in his mind, that great ascetic, after calling his beloved disciple Vipula, a descendant of Bhṛgu, then spoke.

Words meanings summery:

• रक्षाविधानं (rakṣāvidhānaṁ) - method of protection, protective arrangement

• मनसा (manasā) - by the mind, with the mind, in mind

• सः (saḥ) - he

• विचिन्त्य (vicintya) - having considered, having thought over, having pondered

• महातपाः (mahātapāḥ) - great ascetic, one with great austerity

• आहूय (āhūya) - having called, after calling

• दयितं (dayitaṁ) - beloved, dear

• शिष्यं (śiṣyaṁ) - disciple, student

• विपुलं (vipulaṁ) - Vipula (proper name)

• प्राह (prāha) - he said, spoke

• भार्गवम् (bhārgavam) - Vipula, who belongs to the lineage of Bhṛgu (a descendant of Bhṛgu (epithet for Vipula))

Words meanings and morphology

रक्षाविधानं (rakṣāvidhānaṁ) - method of protection, protective arrangement

(noun)

Accusative, neuter, singular of rakṣāvidhāna

rakṣāvidhāna - method of protection, protective measure

Compound type : tatpurusha (rakṣā+vidhāna)

• rakṣā – protection, guard, preservation
  noun (feminine)
  from rakṣ (to protect)
  Root: rakṣ (class 1)
• vidhāna – arrangement, method, rule, ordinance
  noun (neuter)
  from vi + dhā (to place, arrange)
  Prefix: vi
  Root: dhā (class 3)

मनसा (manasā) - by the mind, with the mind, in mind

(noun)

Instrumental, neuter, singular of manas

manas - mind, intellect, thought

from man (to think)

Root: man (class 4)

सः (saḥ) - he

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, it

विचिन्त्य (vicintya) - having considered, having thought over, having pondered

(indeclinable)

absolutive

from vi + cint (to think) + lyap

Prefix: vi

Root: cint (class 10)

महातपाः (mahātapāḥ) - great ascetic, one with great austerity

(adjective)

Nominative, masculine, singular of mahātapas

mahātapas - great ascetic, having great (tapas) austerity

Compound type : bahuvrihi (mahat+tapas)

• mahat – great, large, eminent
  adjective
• tapas – (tapas) austerity, penance, heat
  noun (neuter)
  from tap (to heat, suffer penance)
  Root: tap (class 1)

आहूय (āhūya) - having called, after calling

(indeclinable)

absolutive

from ā + hve (to call) + lyap

Prefix: ā

Root: hve (class 1)

दयितं (dayitaṁ) - beloved, dear

(adjective)

Accusative, masculine, singular of dayita

dayita - beloved, dear, fond

Past Passive Participle

from day (to pity, love) + kta

Root: day (class 1)

शिष्यं (śiṣyaṁ) - disciple, student

(noun)

Accusative, masculine, singular of śiṣya

śiṣya - disciple, pupil, student

Gerundive

from śās (to instruct) + ṇyat

Root: śās (class 2)

विपुलं (vipulaṁ) - Vipula (proper name)

(proper noun)

Accusative, masculine, singular of vipula

vipula - Vipula (a proper name, also meaning ample, extensive)

प्राह (prāha) - he said, spoke

(verb)

3rd person , singular, active, perfect (liṭ) of prahū

Prefix: pra

Root: hū (class 1)

भार्गवम् (bhārgavam) - Vipula, who belongs to the lineage of Bhṛgu (a descendant of Bhṛgu (epithet for Vipula))

(noun)

Accusative, masculine, singular of bhārgava

bhārgava - a descendant of Bhṛgu; a name of Śukra (Venus); also a proper name

patronymic from Bhṛgu