महाभारतः mahābhārataḥ - book-9, chapter-4, verse-4

गाहमानमनीकानि युध्यमानं महारथैः ।
पाण्डवैरतितेजोभिर्लोकस्त्वामनुदृष्टवान् ॥४॥

4. gāhamānamanīkāni yudhyamānaṁ mahārathaiḥ ,
pāṇḍavairatitejobhirlokastvāmanudṛṣṭavān.

4. gāhamānam anīkāni yudhyamānam mahārathaiḥ
pāṇḍavaiḥ atitejobhiḥ lokaḥ tvām anudṛṣṭavān

4. lokaḥ tvām anīkāni gāhamānam mahārathaiḥ
atitejobhiḥ pāṇḍavaiḥ yudhyamānam anudṛṣṭavān

4. The world (loka) has seen you plunging into armies and fighting against great chariot-warriors (mahāratha) and the exceedingly powerful Pāṇḍavas.

Words meanings summery:

• गाहमानम् (gāhamānam) - charging into the thick of battle, into armies (plunging into, entering, immersing)

• अनीकानि (anīkāni) - armies, hosts, divisions

• युध्यमानम् (yudhyamānam) - fighting, engaged in battle

• महारथैः (mahārathaiḥ) - with great warriors, with great chariot-fighters (mahāratha)

• पाण्डवैः (pāṇḍavaiḥ) - by the Pāṇḍavas

• अतितेजोभिः (atitejobhiḥ) - describing the Pāṇḍavas as very mighty (with exceedingly powerful ones, with those of great valor)

• लोकः (lokaḥ) - everyone, the onlookers (the world, people, mankind (loka))

• त्वाम् (tvām) - Kṛpa (you)

• अनुदृष्टवान् (anudṛṣṭavān) - has seen, has observed, has witnessed

Words meanings and morphology

गाहमानम् (gāhamānam) - charging into the thick of battle, into armies (plunging into, entering, immersing)

(participle)

Accusative, masculine, singular of gāhamāna

gāh - to plunge, to enter deeply, to attack

present middle participle

Root gāh + suffix śānac

Root: gāh (class 1)

Note: Action noun in accusative, parallel to yudhyamānam.

अनीकानि (anīkāni) - armies, hosts, divisions

(noun)

Accusative, neuter, plural of anīka

anīka - army, host, array

युध्यमानम् (yudhyamānam) - fighting, engaged in battle

(participle)

Accusative, masculine, singular of yudhyamāna

yudh - to fight, to wage war

present middle participle

Root yudh + suffix śānac

Root: yudh (class 4)

Note: Action noun in accusative.

महारथैः (mahārathaiḥ) - with great warriors, with great chariot-fighters (mahāratha)

(noun)

Instrumental, masculine, plural of mahāratha

mahāratha - great warrior, great chariot-fighter (mahāratha)

Compound of mahā (great) + ratha (chariot)

Compound type : karmadhāraya (mahā+ratha)

• mahā – great, large, mighty
  adjective
• ratha – chariot, vehicle, warrior (who rides a chariot)
  noun (masculine)

Note: Used with yudhyamānam to indicate opponents.

पाण्डवैः (pāṇḍavaiḥ) - by the Pāṇḍavas

(proper noun)

Instrumental, masculine, plural of pāṇḍava

pāṇḍava - descendant of Pāṇḍu, the Pāṇḍavas

Patronymic aṇ suffix from Pāṇḍu

Note: Used with yudhyamānam to indicate opponents.

अतितेजोभिः (atitejobhiḥ) - describing the Pāṇḍavas as very mighty (with exceedingly powerful ones, with those of great valor)

(adjective)

Instrumental, masculine, plural of atitejas

atitejas - exceedingly brilliant, very mighty, of great energy

Compound of ati (exceedingly) + tejas (splendor, might)

Compound type : bahuvrihi (ati+tejas)

• ati – over, beyond, exceeding
  indeclinable
• tejas – splendor, brilliance, energy, power
  noun (neuter)

Note: Adjective modifying pāṇḍavaiḥ.

लोकः (lokaḥ) - everyone, the onlookers (the world, people, mankind (loka))

(noun)

Nominative, masculine, singular of loka

loka - world, people, region (loka)

Derived from root lok (to see)

Root: lok (class 10)

त्वाम् (tvām) - Kṛpa (you)

(pronoun)

Accusative, masculine, singular of yuṣmad

yuṣmad - you (singular or plural)

Second person pronoun

Note: Object of anudṛṣṭavān.

अनुदृष्टवान् (anudṛṣṭavān) - has seen, has observed, has witnessed

(participle)

Nominative, masculine, singular of anudṛṣṭavat

anu-dṛś - to look upon, to observe, to see

perfect active participle

Prefix anu + root dṛś + suffix ktavat

Prefix: anu

Root: dṛś (class 1)

Note: Qualifies lokaḥ.