महाभारतः mahābhārataḥ - book-6, chapter-103, verse-10

तस्मिन्रात्रिमुखे घोरे पाण्डवा वृष्णिभिः सह ।
सृञ्जयाश्च दुराधर्षा मन्त्राय समुपाविशन् ॥१०॥

10. tasminrātrimukhe ghore pāṇḍavā vṛṣṇibhiḥ saha ,
sṛñjayāśca durādharṣā mantrāya samupāviśan.

10. tasmin rātrimukhe ghore pāṇḍavāḥ vṛṣṇibhiḥ saha
sṛñjayāḥ ca durādharṣāḥ mantrāya samupāviśan

10. ghore tasmin rātrimukhe pāṇḍavāḥ vṛṣṇibhiḥ saha
ca durādharṣāḥ sṛñjayāḥ mantrāya samupāviśan

10. At the dreadful beginning of that night, the Pandavas, along with the Vrishnis and the unassailable Srinjayas, sat down for deliberation (mantra).

Words meanings summery:

• तस्मिन् (tasmin) - in that

• रात्रिमुखे (rātrimukhe) - at the beginning of the night, at nightfall

• घोरे (ghore) - dreadful, terrible, fearful

• पाण्डवाः (pāṇḍavāḥ) - the sons of Pandu, the Pandavas

• वृष्णिभिः (vṛṣṇibhiḥ) - with the Vrishnis

• सह (saha) - with, together with

• सृञ्जयाः (sṛñjayāḥ) - the Srinjayas

• च (ca) - and, also

• दुराधर्षाः (durādharṣāḥ) - difficult to overcome, unassailable, invincible

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

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

Words meanings and morphology

तस्मिन् (tasmin) - in that

(pronoun)

Locative, masculine, singular of tad

tad - that (pronoun)

Note: Modifies `rātrimukhe`.

रात्रिमुखे (rātrimukhe) - at the beginning of the night, at nightfall

(noun)

Locative, neuter, singular of rātrimukha

rātrimukha - beginning of the night, nightfall

Compound type : tatpurusha (rātri+mukha)

• rātri – night
  noun (feminine)
• mukha – mouth, face, beginning, front
  noun (neuter)

Note: Adverbial locative of time.

घोरे (ghore) - dreadful, terrible, fearful

(adjective)

Locative, neuter, singular of ghora

ghora - dreadful, terrible, fearful, formidable

Note: Modifies `rātrimukhe`.

पाण्डवाः (pāṇḍavāḥ) - the sons of Pandu, the Pandavas

(proper noun)

Nominative, masculine, plural of pāṇḍava

pāṇḍava - descendant of Pandu; a Pandava prince

Patronymic from `paṇḍu`

Note: Subject of `samupāviśan`.

वृष्णिभिः (vṛṣṇibhiḥ) - with the Vrishnis

(proper noun)

Instrumental, masculine, plural of vṛṣṇi

vṛṣṇi - the Vrishnis (a Yadu clan, to which Krishna belonged)

सह (saha) - with, together with

(indeclinable)

सृञ्जयाः (sṛñjayāḥ) - the Srinjayas

(proper noun)

Nominative, masculine, plural of sṛñjaya

sṛñjaya - The Srinjayas (a warrior tribe allied with the Pandavas)

च (ca) - and, also

(indeclinable)

Note: Connects `sṛñjayāḥ` to the previous subject.

दुराधर्षाः (durādharṣāḥ) - difficult to overcome, unassailable, invincible

(adjective)

Nominative, masculine, plural of durādharṣa

durādharṣa - difficult to overcome, unassailable, invincible, irresistible

Gerundive (from `dhṛṣ` with `dur` + `ā`)

From `dur` (difficult) + `ā` (towards) + root `dhṛṣ` (to dare, attack)

Prefixes: dur+ā

Root: dhṛṣ (class 5)

Note: Masculine nominative plural.

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

(noun)

Dative, masculine, singular of mantra

mantra - counsel, advice, plan, sacred utterance, hymn, incantation

From root `man` (to think) + suffix `tra`

Root: man (class 4)

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

(verb)

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

Imperfect Active

From root `viś` (to enter) with upasargas `sam` and `upa`

Prefixes: sam+upa

Root: viś (class 6)

Note: `sam-upa-viś` means 'to sit down together for a purpose, assemble'.