महाभारतः mahābhārataḥ - book-15, chapter-11, verse-7

यदा स्वपक्षो बलवान्परपक्षस्तथाबलः ।
विगृह्य शत्रून्कौन्तेय यायात्क्षितिपतिस्तदा ।
यदा स्वपक्षोऽबलवांस्तदा संधिं समाश्रयेत् ॥७॥

7. yadā svapakṣo balavānparapakṣastathābalaḥ ,
vigṛhya śatrūnkaunteya yāyātkṣitipatistadā ,
yadā svapakṣo'balavāṁstadā saṁdhiṁ samāśrayet.

7. yadā svapakṣaḥ balavān parapakṣaḥ
tathā abalaḥ | vigṛhya śatrūn kaunteya
yāyāt kṣitipatiḥ tadā | yadā svapakṣaḥ
abalavān tadā sandhiṃ samāśrayet

7. kaunteya yadā svapakṣaḥ balavān tathā parapakṣaḥ abalaḥ,
tadā kṣitipatiḥ śatrūn vigṛhya yāyāt yadā svapakṣaḥ abalavān tadā sandhiṃ samāśrayet

7. O son of Kunti, when one's own side is strong and the enemy's side is weak, the ruler should then march forth, having attacked the enemies. When one's own side is weak, then he should resort to an alliance.

Words meanings summery:

• यदा (yadā) - when (when, at which time)

• स्वपक्षः (svapakṣaḥ) - one's own side (of the conflict or state) (one's own side, one's own party)

• बलवान् (balavān) - strong (strong, powerful)

• परपक्षः (parapakṣaḥ) - the enemy's side (the enemy's side, the opposing party)

• तथा (tathā) - and (so, thus, similarly, and)

• अबलः (abalaḥ) - weak (weak, powerless, not strong)

• विगृह्य (vigṛhya) - having attacked (having attacked, having seized, having fought)

• शत्रून् (śatrūn) - enemies

• कौन्तेय (kaunteya) - O son of Kunti (referring to Arjuna) (O son of Kunti)

• यायात् (yāyāt) - he should march forth (he should go, he should march)

• क्षितिपतिः (kṣitipatiḥ) - the ruler (king) (ruler, king, lord of the earth)

• तदा (tadā) - then (then, at that time)

• यदा (yadā) - when (when, at which time)

• स्वपक्षः (svapakṣaḥ) - one's own side (of the conflict or state) (one's own side, one's own party)

• अबलवान् (abalavān) - weak (weak, not strong, powerless)

• तदा (tadā) - then (then, at that time)

• सन्धिं (sandhiṁ) - alliance (a political treaty) (peace, alliance, union)

• समाश्रयेत् (samāśrayet) - he should resort to (he should resort to, he should seek refuge in)

Words meanings and morphology

यदा (yadā) - when (when, at which time)

(indeclinable)

स्वपक्षः (svapakṣaḥ) - one's own side (of the conflict or state) (one's own side, one's own party)

(noun)

Nominative, masculine, singular of svapakṣa

svapakṣa - one's own side or party, one's own wing

Compound of sva (own) and pakṣa (side)

Compound type : tatpurusha (sva+pakṣa)

• sva – own, one's own
  pronoun
• pakṣa – side, party, wing, fortnight
  noun (masculine)

बलवान् (balavān) - strong (strong, powerful)

(adjective)

Nominative, masculine, singular of balavat

balavat - strong, powerful, mighty

From bala (strength) with suffix -vat

परपक्षः (parapakṣaḥ) - the enemy's side (the enemy's side, the opposing party)

(noun)

Nominative, masculine, singular of parapakṣa

parapakṣa - the enemy's side, the opposing party

Compound of para (other, enemy) and pakṣa (side)

Compound type : tatpurusha (para+pakṣa)

• para – other, enemy, supreme
  adjective
• pakṣa – side, party, wing, fortnight
  noun (masculine)

तथा (tathā) - and (so, thus, similarly, and)

(indeclinable)

अबलः (abalaḥ) - weak (weak, powerless, not strong)

(adjective)

Nominative, masculine, singular of abala

abala - weak, powerless, feeble, not strong

From a- (negation) and bala (strength)

Compound type : nañ-tatpurusha (a+bala)

• a – not, non-, un-
  prefix
• bala – strength, power, force
  noun (neuter)

विगृह्य (vigṛhya) - having attacked (having attacked, having seized, having fought)

(indeclinable)

Absolutive (Gerund)

From √grah (to seize, take) with prefix vi- and suffix -ya

Prefix: vi

Root: √grah (class 9)

शत्रून् (śatrūn) - enemies

(noun)

Accusative, masculine, plural of śatru

śatru - enemy, foe, rival

कौन्तेय (kaunteya) - O son of Kunti (referring to Arjuna) (O son of Kunti)

(proper noun)

Vocative, masculine, singular of kaunteya

kaunteya - son of Kunti

Patronymic derived from Kunti

यायात् (yāyāt) - he should march forth (he should go, he should march)

(verb)

3rd person , singular, active, optative (vidhiliṅ) of √yā

Optative mood, 3rd person singular, active voice

From √yā (to go)

Root: √yā (class 2)

क्षितिपतिः (kṣitipatiḥ) - the ruler (king) (ruler, king, lord of the earth)

(noun)

Nominative, masculine, singular of kṣitipati

kṣitipati - ruler, king, lord of the earth

Compound of kṣiti (earth) and pati (lord)

Compound type : tatpurusha (kṣiti+pati)

• kṣiti – earth, land, ground
  noun (feminine)
  From √kṣi (to dwell)
  Root: √kṣi (class 1)
• pati – lord, master, husband
  noun (masculine)

तदा (tadā) - then (then, at that time)

(indeclinable)

From the pronominal stem tad- with suffix -dā

यदा (yadā) - when (when, at which time)

(indeclinable)

स्वपक्षः (svapakṣaḥ) - one's own side (of the conflict or state) (one's own side, one's own party)

(noun)

Nominative, masculine, singular of svapakṣa

svapakṣa - one's own side or party, one's own wing

Compound of sva (own) and pakṣa (side)

Compound type : tatpurusha (sva+pakṣa)

• sva – own, one's own
  pronoun
• pakṣa – side, party, wing, fortnight
  noun (masculine)

अबलवान् (abalavān) - weak (weak, not strong, powerless)

(adjective)

Nominative, masculine, singular of abalavat

abalavat - weak, not strong, powerless

From abala (weak) with suffix -vat

Compound type : nañ-tatpurusha (a+bala)

• a – not, non-, un-
  prefix
• bala – strength, power, force
  noun (neuter)

तदा (tadā) - then (then, at that time)

(indeclinable)

From the pronominal stem tad- with suffix -dā

सन्धिं (sandhiṁ) - alliance (a political treaty) (peace, alliance, union)

(noun)

Accusative, masculine, singular of sandhi

sandhi - union, junction, peace, alliance, treaty

From sam-√dhā (to put together)

Prefix: sam

Root: √dhā (class 3)

समाश्रयेत् (samāśrayet) - he should resort to (he should resort to, he should seek refuge in)

(verb)

3rd person , singular, active, optative (vidhiliṅ) of samāśray

Optative mood, 3rd person singular, active voice

From √śri (to resort to, depend on) with prefixes sam- and ā-

Prefixes: sam+ā

Root: √śri (class 1)