महाभारतः mahābhārataḥ - book-1, chapter-105, verse-9

ततः सेनामुपादाय पाण्डुर्नानाविधध्वजाम् ।
प्रभूतहस्त्यश्वरथां पदातिगणसंकुलाम् ॥९॥

9. tataḥ senāmupādāya pāṇḍurnānāvidhadhvajām ,
prabhūtahastyaśvarathāṁ padātigaṇasaṁkulām.

9. tataḥ senām upādāya pāṇḍuḥ nānāvidhadhvajām
prabhūtahastyāśvarathām padātigaṇasaṅkulām

9. Then, Pāṇḍu, having assembled an army adorned with various kinds of banners, teeming with numerous elephants, horses, and chariots, and crowded with masses of foot soldiers...

Words meanings summery:

• ततः (tataḥ) - then, thereupon, after that

• सेनाम् (senām) - army, host, forces

• उपादाय (upādāya) - having taken, having seized, having gathered

• पाण्डुः (pāṇḍuḥ) - Pāṇḍu

• नानाविधध्वजाम् (nānāvidhadhvajām) - having various kinds of banners, whose banners are of various kinds

• प्रभूतहस्त्याश्वरथाम् (prabhūtahastyāśvarathām) - having abundant elephants, horses, and chariots; rich in elephants, horses, and chariots

• पदातिगणसङ्कुलाम् (padātigaṇasaṅkulām) - crowded with groups of foot soldiers, thronged by infantry units

Words meanings and morphology

ततः (tataḥ) - then, thereupon, after that

(indeclinable)

Ablative case ending used as an adverb

सेनाम् (senām) - army, host, forces

(noun)

Accusative, feminine, singular of senā

senā - army, host, forces, armed force

उपादाय (upādāya) - having taken, having seized, having gathered

(indeclinable)

Absolutive (Gerund)

Formed from prefix upa + root dā (to give/take) + suffix -ya (for compound verbs)

Prefix: upa

Root: dā (class 3)

पाण्डुः (pāṇḍuḥ) - Pāṇḍu

(proper noun)

Nominative, masculine, singular of pāṇḍu

pāṇḍu - Pāṇḍu (name of a king, father of the Pāṇḍavas)

नानाविधध्वजाम् (nānāvidhadhvajām) - having various kinds of banners, whose banners are of various kinds

(adjective)

Accusative, feminine, singular of nānāvidhadhvaja

nānāvidhadhvaja - having various kinds of banners

Compound type : Bahuvrihi (nānāvidha+dhvaja)

• nānāvidha – various kinds, manifold, diverse
  adjective (masculine)
• dhvaja – banner, flag, standard
  noun (masculine)

प्रभूतहस्त्याश्वरथाम् (prabhūtahastyāśvarathām) - having abundant elephants, horses, and chariots; rich in elephants, horses, and chariots

(adjective)

Accusative, feminine, singular of prabhūtahastyāśvaratha

prabhūtahastyāśvaratha - having abundant elephants, horses, and chariots

Compound type : Bahuvrihi (prabhūta+hastin+aśva+ratha)

• prabhūta – abundant, numerous, much, grown, manifest
  adjective (masculine)
  Past Passive Participle
  Derived from pra-bhū (to be mighty, to be prominent)
  Prefix: pra
  Root: bhū (class 1)
• hastin – elephant
  noun (masculine)
• aśva – horse
  noun (masculine)
• ratha – chariot
  noun (masculine)

पदातिगणसङ्कुलाम् (padātigaṇasaṅkulām) - crowded with groups of foot soldiers, thronged by infantry units

(adjective)

Accusative, feminine, singular of padātigaṇasaṅkulā

padātigaṇasaṅkulā - crowded with groups of foot soldiers

Compound type : Tatpurusha (padātigaṇa+saṅkulā)

• padātigaṇa – multitude of foot soldiers, host of infantry
  noun (masculine)
• saṅkulā – crowded, filled, full, dense
  adjective (feminine)