योगवासिष्ठः yogavāsiṣṭhaḥ - book-6, chapter-52, verse-31

अन्योन्यं हरतोरुर्वौ तयोः संग्रामलोलयोः ।
अष्टादशात्राक्षौहिण्यो घटिष्यन्त्यत्र भीषणाः ॥ ३१ ॥

anyonyaṃ haratorurvau tayoḥ saṃgrāmalolayoḥ ,
aṣṭādaśātrākṣauhiṇyo ghaṭiṣyantyatra bhīṣaṇāḥ 31

31. anyonyam haratoḥ urvau tayoḥ saṅgrāma-lolayoḥ
aṣṭādaśa atra akṣauhiṇyaḥ ghaṭiṣyanti atra bhīṣaṇāḥ

31. tayoḥ saṅgrāma-lolayoḥ anyonyam urvau haratoḥ atra
aṣṭādaśa bhīṣaṇāḥ akṣauhiṇyaḥ atra ghaṭiṣyanti

31. Between those two, eager for battle and seizing each other's land, eighteen formidable akṣauhiṇīs (army divisions) will gather here.

Words meanings summery:

• अन्योन्यम् (anyonyam) - mutually, each other

• हरतोः (haratoḥ) - of those who are seizing (the land) (of those taking/seizing; by those taking/seizing)

• उर्वौ (urvau) - on the land (disputed land) (on the earth; two earths)

• तयोः (tayoḥ) - between those two (parties, i.e., Kauravas and Pandavas) (of those two, between those two, for those two)

• सङ्ग्राम-लोलयोः (saṅgrāma-lolayoḥ) - of those eager for battle, for those eager for battle

• अष्टादश (aṣṭādaśa) - eighteen

• अत्र (atra) - here, in this place, in this matter

• अक्षौहिण्यः (akṣauhiṇyaḥ) - army divisions, akṣauhiṇīs

• घटिष्यन्ति (ghaṭiṣyanti) - they will gather (for battle) (they will assemble, they will happen, they will occur)

• अत्र (atra) - here, in this place, in this matter

• भीषणाः (bhīṣaṇāḥ) - frightful, terrible, formidable

Words meanings and morphology

अन्योन्यम् (anyonyam) - mutually, each other

(indeclinable)

हरतोः (haratoḥ) - of those who are seizing (the land) (of those taking/seizing; by those taking/seizing)

(participle)

Genitive, masculine, dual of harat

harat - taking, seizing, carrying

Present Active Participle

Derived from root hṛ (to seize, carry) with present active participle suffix -at.

Root: hṛ (class 1)

Note: Can also be locative dual.

उर्वौ (urvau) - on the land (disputed land) (on the earth; two earths)

(noun)

Locative, feminine, singular of urvī

urvī - earth, land, ground

Note: Can also be nominative/accusative dual.

तयोः (tayoḥ) - between those two (parties, i.e., Kauravas and Pandavas) (of those two, between those two, for those two)

(pronoun)

Genitive, masculine, dual of tad

tad - that, those

Note: Can also be locative dual.

सङ्ग्राम-लोलयोः (saṅgrāma-lolayoḥ) - of those eager for battle, for those eager for battle

(adjective)

Genitive, masculine, dual of saṅgrāma-lola

saṅgrāma-lola - eager for battle, trembling with battle-lust

Compound type : tatpuruṣa (saṅgrāma+lola)

• saṅgrāma – battle, war, conflict
  noun (masculine)
  Prefix: sam
  Root: gram (class 1)
• lola – trembling, shaking, agitated, eager, desirous
  adjective (masculine)
  Root: lul (class 1)

Note: Can also be locative dual.

अष्टादश (aṣṭādaśa) - eighteen

(numeral)

अत्र (atra) - here, in this place, in this matter

(indeclinable)

अक्षौहिण्यः (akṣauhiṇyaḥ) - army divisions, akṣauhiṇīs

(noun)

Nominative, feminine, plural of akṣauhiṇī

akṣauhiṇī - a specific, very large division of an army (mentioned in Mahabharata), consisting of 21,870 chariots, 21,870 elephants, 65,610 horses, and 109,350 infantry

घटिष्यन्ति (ghaṭiṣyanti) - they will gather (for battle) (they will assemble, they will happen, they will occur)

(verb)

3rd person , plural, active, future (lyṛṭ) of ghaṭ

Root: ghaṭ (class 1)

अत्र (atra) - here, in this place, in this matter

(indeclinable)

भीषणाः (bhīṣaṇāḥ) - frightful, terrible, formidable

(adjective)

Nominative, feminine, plural of bhīṣaṇa

bhīṣaṇa - frightful, terrible, dreadful, formidable

Derived from root bhī (to fear), causative form bhīṣa + ana suffix.

Root: bhī (class 3)

Note: Agrees with akṣauhiṇyaḥ