योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-50, verse-7

अथ राजा द्वितीयोऽपि वैष्णवास्त्रस्य शान्तये ।
ददौ वैष्णवमेवास्त्रं शत्रुनिष्ठावपूरकम् ॥ ७ ॥

atha rājā dvitīyo'pi vaiṣṇavāstrasya śāntaye ,
dadau vaiṣṇavamevāstraṃ śatruniṣṭhāvapūrakam 7

7. atha rājā dvitīyaḥ api vaiṣṇavāstrasya śāntaye
dadau vaiṣṇavam eva astram śatruniṣṭhāvapūrakam

7. atha dvitīyaḥ rājā vaiṣṇavāstrasya śāntaye
vaiṣṇavam astram eva śatruniṣṭhāvapūrakam dadau api

7. Then the second king, for the pacification of the (first king's) Vaiṣṇava weapon (astra), himself released a Vaiṣṇava weapon (astra) that fulfilled the enemy's ultimate intent.

Words meanings summery:

• अथ (atha) - then, now, thereupon

• राजा (rājā) - king

• द्वितीयः (dvitīyaḥ) - second

• अपि (api) - also, even, too

• वैष्णवास्त्रस्य (vaiṣṇavāstrasya) - of the divine weapon related to Viṣṇu (of the Vaiṣṇava weapon (astra))

• शान्तये (śāntaye) - for pacification, for cessation

• ददौ (dadau) - he released (an astra) (he gave, offered)

• वैष्णवम् (vaiṣṇavam) - Vaiṣṇava, related to Viṣṇu

• एव (eva) - indeed, only, just, itself

• अस्त्रम् (astram) - weapon, missile

• शत्रुनिष्ठावपूरकम् (śatruniṣṭhāvapūrakam) - that which brings about the enemy's ultimate end or goal (e.g., destruction) (that which fulfills the enemy's resolve/purpose)

Words meanings and morphology

अथ (atha) - then, now, thereupon

(indeclinable)

राजा (rājā) - king

(noun)

Nominative, masculine, singular of rājan

rājan - king, ruler, sovereign

द्वितीयः (dvitīyaḥ) - second

(adjective)

Nominative, masculine, singular of dvitīya

dvitīya - second, another, following

अपि (api) - also, even, too

(indeclinable)

वैष्णवास्त्रस्य (vaiṣṇavāstrasya) - of the divine weapon related to Viṣṇu (of the Vaiṣṇava weapon (astra))

(noun)

Genitive, neuter, singular of vaiṣṇavāstra

vaiṣṇavāstra - a Vaiṣṇava weapon

Compound type : tatpurusha (vaiṣṇava+astra)

• vaiṣṇava – relating to Viṣṇu, Viṣṇuite
  adjective
• astra – missile, projectile, divine weapon
  noun (neuter)

शान्तये (śāntaye) - for pacification, for cessation

(noun)

Dative, feminine, singular of śānti

śānti - peace, tranquility, pacification, cessation

Root: śam (class 4)

ददौ (dadau) - he released (an astra) (he gave, offered)

(verb)

3rd person , singular, active, perfect (lit) of dā

Root: dā (class 3)

वैष्णवम् (vaiṣṇavam) - Vaiṣṇava, related to Viṣṇu

(adjective)

Accusative, neuter, singular of vaiṣṇava

vaiṣṇava - relating to Viṣṇu, Viṣṇuite

Note: Agrees with 'astram'

एव (eva) - indeed, only, just, itself

(indeclinable)

अस्त्रम् (astram) - weapon, missile

(noun)

Accusative, neuter, singular of astra

astra - missile, projectile, divine weapon

शत्रुनिष्ठावपूरकम् (śatruniṣṭhāvapūrakam) - that which brings about the enemy's ultimate end or goal (e.g., destruction) (that which fulfills the enemy's resolve/purpose)

(adjective)

Accusative, neuter, singular of śatruniṣṭhāvapūraka

śatruniṣṭhāvapūraka - fulfilling the enemy's purpose or end

Compound type : tatpurusha (śatru+niṣṭhā+avapūraka)

• śatru – enemy, foe
  noun (masculine)
• niṣṭhā – end, termination, resolve, aim, purpose
  noun (feminine)
• avapūraka – filling, completing, fulfilling
  adjective
  Agent noun from verb
  Derived from ava-√pūr (to fill, complete) + ṇvul (aka aka)
  Prefix: ava
  Root: pūr (class 10)

Note: Agrees with 'astram'