महाभारतः mahābhārataḥ - book-6, chapter-42, verse-3

तथैव पाण्डवाः सर्वे भीमसेनपुरोगमाः ।
भीष्मेण युद्धमिच्छन्तः प्रययुर्हृष्टमानसाः ॥३॥

3. tathaiva pāṇḍavāḥ sarve bhīmasenapurogamāḥ ,
bhīṣmeṇa yuddhamicchantaḥ prayayurhṛṣṭamānasāḥ.

3. tathā eva pāṇḍavāḥ sarve bhīmasenapurōgamāḥ
bhīṣmeṇa yuddham icchantaḥ prayayuḥ hṛṣṭamānasāḥ

3. tathā eva sarve bhīmasenapurōgamāḥ pāṇḍavāḥ
bhīṣmeṇa yuddham icchantaḥ hṛṣṭamānasāḥ prayayuḥ

3. Thus, all the Pandavas, with Bhimasena at their forefront, advanced with joyful hearts, eager for battle with Bhishma.

Words meanings summery:

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

• एव (eva) - indeed, only, just

• पाण्डवाः (pāṇḍavāḥ) - the sons of Pāṇḍu, the Pāṇḍavas

• सर्वे (sarve) - all

• भीमसेनपुर्ओगमाः (bhīmasenapurōgamāḥ) - having Bhimasena as their leader, led by Bhimasena

• भीष्मेण (bhīṣmeṇa) - by Bhishma

• युद्धम् (yuddham) - battle, war

• इच्छन्तः (icchantaḥ) - desiring, wishing

• प्रययुः (prayayuḥ) - they went forth, proceeded

• हृष्टमानसाः (hṛṣṭamānasāḥ) - with joyful hearts, delighted in mind

Words meanings and morphology

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

(indeclinable)

एव (eva) - indeed, only, just

(indeclinable)

पाण्डवाः (pāṇḍavāḥ) - the sons of Pāṇḍu, the Pāṇḍavas

(proper noun)

Nominative, masculine, plural of pāṇḍava

pāṇḍava - descendant of Pāṇḍu, relating to Pāṇḍu

From Pāṇḍu + -a (aṇ affix)

सर्वे (sarve) - all

(pronoun)

Nominative, masculine, plural of sarva

sarva - all, every, whole

भीमसेनपुर्ओगमाः (bhīmasenapurōgamāḥ) - having Bhimasena as their leader, led by Bhimasena

(adjective)

Nominative, masculine, plural of bhīmasenapurōgama

bhīmasenapurōgama - having Bhimasena as chief/leader

Compound type : bahuvrīhi (bhīmasena+purōgama)

• bhīmasena – name of one of the Pandavas
  proper noun (masculine)
• purōgama – going before, leading, chief
  noun (masculine)
  From puras (before) + √gam (to go) + -a
  Prefix: puras
  Root: gam (class 1)

भीष्मेण (bhīṣmeṇa) - by Bhishma

(proper noun)

Instrumental, masculine, singular of bhīṣma

bhīṣma - name of a prominent Kuru warrior, son of Śāntanu

युद्धम् (yuddham) - battle, war

(noun)

Accusative, neuter, singular of yuddha

yuddha - battle, war, fight

Past Passive Participle

From √yudh (to fight) + -ta

Root: yudh (class 4)

इच्छन्तः (icchantaḥ) - desiring, wishing

(adjective)

Nominative, masculine, plural of icchant

icchant - desiring, wishing

Present Active Participle

From √iṣ (to wish, desire) with reduplication and śna-affix (as icchati)

Root: iṣ (class 6)

प्रययुः (prayayuḥ) - they went forth, proceeded

(verb)

3rd person , plural, active, perfect (liṭ) of pra-yā

Prefix: pra

Root: yā (class 2)

हृष्टमानसाः (hṛṣṭamānasāḥ) - with joyful hearts, delighted in mind

(adjective)

Nominative, masculine, plural of hṛṣṭamānasa

hṛṣṭamānasa - having a joyful mind/heart, cheerful

Compound type : bahuvrīhi (hṛṣṭa+mānasa)

• hṛṣṭa – glad, cheerful, joyful
  adjective (masculine)
  Past Passive Participle
  From √hṛṣ (to be excited, glad) + -ta
  Root: hṛṣ (class 4)
• mānasa – relating to the mind, mental; heart, mind
  noun (neuter)
  From manas + -a