महाभारतः mahābhārataḥ - book-12, chapter-311, verse-8

सोऽविशङ्केन मनसा तथैव द्विजसत्तमः ।
अरणीं ममन्थ ब्रह्मर्षिस्तस्यां जज्ञे शुको नृप ॥८॥

8. so'viśaṅkena manasā tathaiva dvijasattamaḥ ,
araṇīṁ mamantha brahmarṣistasyāṁ jajñe śuko nṛpa.

8. saḥ aviśaṅkena manasā tathā eva dvijasattamaḥ |
araṇīm mamantha brahmarṣiḥ tasyām jajñe śukaḥ nṛpa

8. saḥ dvijasattamaḥ brahmarṣiḥ aviśaṅkena manasā tathā eva araṇīm mamantha.
nṛpa,
tasyām śukaḥ jajñe.

8. With an unwavering mind, that foremost among the twice-born, the Brahma-ṛṣi Vyasa, churned the friction-sticks (araṇi) in the same manner. From her (the araṇi), O King, the sage Śuka was born.

Words meanings summery:

• सः (saḥ) - he, that

• अविशङ्केन (aviśaṅkena) - by an unwavering, by a fearless

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

• तथा (tathā) - thus, so, in that manner

• एव (eva) - indeed, only, even

• द्विजसत्तमः (dvijasattamaḥ) - foremost among the twice-born, best of Brahmins

• अरणीम् (araṇīm) - the friction-stick

• ममन्थ (mamantha) - churned, rubbed

• ब्रह्मर्षिः (brahmarṣiḥ) - the sage Vyasa (Brahma-ṛṣi, a sage of the highest order)

• तस्याम् (tasyām) - in the araṇi (friction-stick) (in her, in that)

• जज्ञे (jajñe) - was born, originated

• शुकः (śukaḥ) - Shuka (proper name)

• नृप (nṛpa) - O King

Words meanings and morphology

सः (saḥ) - he, that

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

अविशङ्केन (aviśaṅkena) - by an unwavering, by a fearless

(adjective)

Instrumental, neuter, singular of aviśaṅka

aviśaṅka - unwavering, fearless, undaunted

Compound type : nañ-tatpuruṣa (a+viśaṅka)

• a – not, non-, un-
  indeclinable
• viśaṅka – fearful, doubting, hesitating
  adjective (masculine)
  Root: śaṅk (class 1)

Note: agrees with manasā (neuter)

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

(noun)

Instrumental, neuter, singular of manas

manas - mind, intellect, thought, heart

तथा (tathā) - thus, so, in that manner

(indeclinable)

एव (eva) - indeed, only, even

(indeclinable)

द्विजसत्तमः (dvijasattamaḥ) - foremost among the twice-born, best of Brahmins

(noun)

Nominative, masculine, singular of dvijasattama

dvijasattama - foremost among the twice-born (Brahmin, Kshatriya, Vaishya), best of Brahmins

Compound type : tatpuruṣa (dvija+sattama)

• dvija – twice-born (Brahmin, Kshatriya, Vaishya), bird, tooth
  noun (masculine)
  derived from dvi (twice) + jan (to be born)
  Root: jan (class 4)
• sattama – best, most excellent, foremost
  adjective (masculine)
  superlative of sat (good, existing)

अरणीम् (araṇīm) - the friction-stick

(noun)

Accusative, feminine, singular of araṇi

araṇi - friction-stick (used for kindling fire), tinder-wood

ममन्थ (mamantha) - churned, rubbed

(verb)

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

Perfect

Root: manth (class 1)

ब्रह्मर्षिः (brahmarṣiḥ) - the sage Vyasa (Brahma-ṛṣi, a sage of the highest order)

(noun)

Nominative, masculine, singular of brahmarṣi

brahmarṣi - Brahma-ṛṣi (a sage of the highest class, one who has realized Brahman)

Compound type : karmadhāraya (brahman+ṛṣi)

• brahman – Brahman (the Absolute), sacred word, Veda, priest
  noun (neuter)
• ṛṣi – sage, seer, inspired poet
  noun (masculine)

तस्याम् (tasyām) - in the araṇi (friction-stick) (in her, in that)

(pronoun)

Locative, feminine, singular of tad

tad - that, she, it

जज्ञे (jajñe) - was born, originated

(verb)

3rd person , singular, middle, perfect (lit) of jan

Perfect

Root: jan (class 4)

शुकः (śukaḥ) - Shuka (proper name)

(proper noun)

Nominative, masculine, singular of śuka

śuka - Shuka (name of a celebrated sage, son of Vyasa); parrot

नृप (nṛpa) - O King

(noun)

Vocative, masculine, singular of nṛpa

nṛpa - king, ruler, guardian of men

derived from nṛ (man) + pā (to protect)