महाभारतः mahābhārataḥ - book-3, chapter-299, verse-29

पृथक्शास्त्रविदः सर्वे सर्वे मन्त्रविशारदाः ।
संधिविग्रहकालज्ञा मन्त्राय समुपाविशन् ॥२९॥

29. pṛthakśāstravidaḥ sarve sarve mantraviśāradāḥ ,
saṁdhivigrahakālajñā mantrāya samupāviśan.

29. pṛthak śāstravidaḥ sarve sarve mantraviśāradāḥ
saṃdhivigrahakālajñāḥ mantrāya sam upāviśan

29. All of them, individually learned in various sciences and all skilled in counsel (mantra), discerning the opportune times for peace and war, sat down for a strategic deliberation (mantra).

Words meanings summery:

• पृथक् (pṛthak) - individually, separately, distinctly

• शास्त्रविदः (śāstravidaḥ) - knowers of scriptures/sciences

• सर्वे (sarve) - all, everyone

• सर्वे (sarve) - all, everyone

• मन्त्रविशारदाः (mantraviśāradāḥ) - skilled in counsel/strategy, expert in sacred texts/spells

• संधिविग्रहकालज्ञाः (saṁdhivigrahakālajñāḥ) - knowing the times for peace and war, knowing opportune moments for alliance and conflict

• मन्त्राय (mantrāya) - for counsel, for deliberation, for a secret plan

• समुपाविशन् (samupāviśan) - they sat down, they assembled

Words meanings and morphology

पृथक् (pṛthak) - individually, separately, distinctly

(indeclinable)

Note: Modifies the quality of the 'knowers'.

शास्त्रविदः (śāstravidaḥ) - knowers of scriptures/sciences

(noun)

Nominative, masculine, plural of śāstravid

śāstravid - knower of scriptures, skilled in sciences

Compound formed from 'śāstra' + 'vid'

Compound type : tatpurusha (śāstra+vid)

• śāstra – scripture, science, treatise, rule
  noun (neuter)
  Root: śās (class 2)
• vid – knower, knowing
  adjective
  From root 'vid' (to know)
  Root: vid (class 2)

Note: Refers to the Pandavas and possibly Dhaumya, who are learned.

सर्वे (sarve) - all, everyone

(pronoun)

Nominative, masculine, plural of sarva

sarva - all, whole, every

Note: Agrees with 'śāstravidaḥ'.

सर्वे (sarve) - all, everyone

(pronoun)

Nominative, masculine, plural of sarva

sarva - all, whole, every

Note: Emphasizes that all of them possessed the following quality.

मन्त्रविशारदाः (mantraviśāradāḥ) - skilled in counsel/strategy, expert in sacred texts/spells

(adjective)

Nominative, masculine, plural of mantraviśārada

mantraviśārada - expert in counsel, skilled in strategy, proficient in mantras

Compound of 'mantra' (counsel, sacred text) and 'viśārada' (skilled, expert)

Compound type : tatpurusha (mantra+viśārada)

• mantra – sacred text, spell, counsel, plan, deliberation
  noun (masculine)
  From root 'man' (to think)
  Root: man (class 4)
• viśārada – skilled, expert, proficient
  adjective
  Prefix: vi

Note: Agrees with 'sarve' (Pandavas and Dhaumya).

संधिविग्रहकालज्ञाः (saṁdhivigrahakālajñāḥ) - knowing the times for peace and war, knowing opportune moments for alliance and conflict

(adjective)

Nominative, masculine, plural of saṃdhivigrahakālajña

saṁdhivigrahakālajña - knower of the opportune times for peace and war (or alliance and conflict)

Compound of 'sandhi' (peace, alliance), 'vigraha' (war, conflict), 'kāla' (time), and 'jña' (knower)

Compound type : tatpurusha (sandhi+vigraha+kāla+jña)

• sandhi – peace, alliance, union
  noun (masculine)
  action noun
  From root 'dhā' with prefix 'sam'
  Prefix: sam
  Root: dhā (class 3)
• vigraha – war, conflict, separation
  noun (masculine)
  action noun
  From root 'grah' with prefix 'vi'
  Prefix: vi
  Root: grah (class 9)
• kāla – time, opportune moment
  noun (masculine)
• jña – knower, intelligent
  adjective
  agent noun/adjective
  From root 'jñā' (to know)
  Root: jñā (class 9)

Note: Agrees with 'sarve'.

मन्त्राय (mantrāya) - for counsel, for deliberation, for a secret plan

(noun)

Dative, masculine, singular of mantra

mantra - sacred text, spell, counsel, plan, deliberation

From root 'man' (to think)

Root: man (class 4)

Note: Indicates purpose.

समुपाविशन् (samupāviśan) - they sat down, they assembled

(verb)

3rd person , plural, active, imperfect past (laṅ) of samupaviś

Prefixes: sam+upa

Root: viś (class 6)