महाभारतः mahābhārataḥ - book-6, chapter-51, verse-18

ततः सरथनागाश्वा भीष्मद्रोणपुरोगमाः ।
अभ्यवर्तन्त राजानः सहिताः सव्यसाचिनम् ॥१८॥

18. tataḥ sarathanāgāśvā bhīṣmadroṇapurogamāḥ ,
abhyavartanta rājānaḥ sahitāḥ savyasācinam.

18. tataḥ sarathanāgāśvā bhīṣmadroṇapurogamāḥ
abhyavartanta rājānaḥ sahitāḥ savyasācinam

18. tataḥ bhīṣmadroṇapurogamāḥ sarathanāgāśvāḥ
sahitāḥ rājānaḥ savyasācinam abhyavartanta

18. Then, the kings, accompanied by their chariots, elephants, and horses, and led by Bhishma and Drona, together turned towards Savyasachin (Arjuna).

Words meanings summery:

• ततः (tataḥ) - then, thereafter, from there

• सरथनागाश्वा (sarathanāgāśvā) - with chariots, elephants, and horses

• भीष्मद्रोणपुरोगमाः (bhīṣmadroṇapurogamāḥ) - having Bhishma and Drona as their leaders/foremost

• अभ्यवर्तन्त (abhyavartanta) - they turned towards, they attacked, they advanced

• राजानः (rājānaḥ) - kings, rulers

• सहिताः (sahitāḥ) - accompanied, joined, together with

• सव्यसाचिनम् (savyasācinam) - towards Savyasachin (Arjuna, ambidextrous archer)

Words meanings and morphology

ततः (tataḥ) - then, thereafter, from there

(indeclinable)

सरथनागाश्वा (sarathanāgāśvā) - with chariots, elephants, and horses

(adjective)

Nominative, masculine, plural of sarathanāgāśva

sarathanāgāśva - having chariots, elephants, and horses; accompanied by chariots, elephants, and horses

Compound type : bahuvrīhi (sa+ratha+nāga+aśva)

• sa – with, accompanied by, possessing
  indeclinable
• ratha – chariot
  noun (masculine)
• nāga – elephant, serpent
  noun (masculine)
• aśva – horse
  noun (masculine)

Note: Compound formed with 'sa' (with) and a Dvandva compound of 'ratha', 'nāga', and 'aśva'.

भीष्मद्रोणपुरोगमाः (bhīṣmadroṇapurogamāḥ) - having Bhishma and Drona as their leaders/foremost

(adjective)

Nominative, masculine, plural of bhīṣmadroṇapurogama

bhīṣmadroṇapurogama - led by Bhishma and Drona, having Bhishma and Drona at the forefront

Compound type : bahuvrīhi (bhīṣma+droṇa+puras+gama)

• bhīṣma – Bhishma (proper noun, name of a Pāṇḍava elder)
  proper noun (masculine)
• droṇa – Drona (proper noun, a guru and warrior)
  proper noun (masculine)
• puras – in front, before, eastward
  indeclinable
• gama – going, moving, leading; one who goes
  adjective (masculine)
  Derived from root √gam (to go)
  Root: gam (class 1)

अभ्यवर्तन्त (abhyavartanta) - they turned towards, they attacked, they advanced

(verb)

3rd person , plural, middle, imperfect (laṅ) of vṛt

Root: vṛt (class 1)

Note: Formed with prefixes abhi- and ava-.

राजानः (rājānaḥ) - kings, rulers

(noun)

Nominative, masculine, plural of rājan

rājan - king, ruler, chief

सहिताः (sahitāḥ) - accompanied, joined, together with

(adjective)

Nominative, masculine, plural of sahita

sahita - accompanied, joined, united, together

Past Passive Participle

Derived from root √dhā (to place) with prefix sa- (or from 'saha' + 'ita')

Prefix: sa

Root: dhā (class 3)

सव्यसाचिनम् (savyasācinam) - towards Savyasachin (Arjuna, ambidextrous archer)

(proper noun)

Accusative, masculine, singular of savyasācin

savyasācin - one who shoots with the left hand; an epithet of Arjuna

Compound type : bahuvrīhi (savya+sācin)

• savya – left, left hand
  adjective
• sācin – shooter, archer
  noun (masculine)
  Derived from root √sac (to attach, join) or √sāc (to shoot).
  Root: sac (class 1)