योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-170, verse-4

अशङ्कितोपचरणं सुसंपादितनिर्वृति ।
कोपेष्वकोपनतया वितीर्णावर्जनामृतम् ॥ ४ ॥

aśaṅkitopacaraṇaṃ susaṃpāditanirvṛti ,
kopeṣvakopanatayā vitīrṇāvarjanāmṛtam 4

4. aśaṅkitopacaraṇam susaṃpāditaniṛvṛti
kopeṣu akopanatayā vitīrṇāvarjanāmṛtam

4. (ekam akṛtrimam mitram) aśaṅkitopacaraṇam (asti),
susaṃpāditaniṛvṛti (asti),
ca kopeṣu akopanatayā vitīrṇāvarjanāmṛtam (asti).

4. It provides service without apprehension, yields well-accomplished peace (nirvṛti), and in times of anger, with its non-anger, it bestows the nectar of conciliation.

Words meanings summery:

• अशङ्कितोपचरणम् (aśaṅkitopacaraṇam) - providing service or aid without doubt or hesitation (providing service without apprehension/doubt, unhesitating service)

• सुसंपादितनिऋवृति (susaṁpāditaniṛvṛti) - that which yields or has well-accomplished peace (nirvṛti) (providing well-accomplished peace/bliss; well-accomplished peace/bliss)

• कोपेषु (kopeṣu) - in times of anger or wrath (in anger, in fits of rage)

• अकोपनतया (akopanatayā) - by means of non-anger or patience (by non-anger, by patience)

• वितीर्णावर्जनामृतम् (vitīrṇāvarjanāmṛtam) - that which bestows the nectar of conciliation (bestowing the nectar of conciliation/appeasement)

Words meanings and morphology

अशङ्कितोपचरणम् (aśaṅkitopacaraṇam) - providing service or aid without doubt or hesitation (providing service without apprehension/doubt, unhesitating service)

(noun)

neuter, singular of aśaṅkitopacaraṇa

aśaṅkitopacaraṇa - unhesitating service, service without apprehension

Compound of 'aśaṅkita' (unapprehensive, undoubting) and 'upacaraṇa' (service, attention).

Compound type : karmadhāraya (aśaṅkita+upacaraṇa)

• aśaṅkita – unapprehensive, fearless, undoubting
  adjective
  Past Passive Participle (negative)
  From a-√śaṅk (not to fear/doubt). 'a' (negative prefix) + 'śaṅkita' (feared, doubted).
  Prefix: a
  Root: śaṅk (class 1)
• upacaraṇa – service, attendance, attention, treatment
  noun (neuter)
  From upa-√car (to approach, serve) + ana suffix.
  Prefix: upa
  Root: car (class 1)

सुसंपादितनिऋवृति (susaṁpāditaniṛvṛti) - that which yields or has well-accomplished peace (nirvṛti) (providing well-accomplished peace/bliss; well-accomplished peace/bliss)

(adjective)

neuter, singular of susaṃpāditaniṛvṛti

susaṁpāditaniṛvṛti - well-accomplished peace/bliss; resulting in perfect peace; having well-achieved liberation (mokṣa)

Compound of 'susaṃpādita' (well-accomplished, perfectly brought about) and 'nirvṛti' (peace, bliss, liberation). As an adjective, it is a Bahuvrihi.

Compound type : bahuvrīhi (susaṃpādita+nirvṛti)

• susaṃpādita – well-accomplished, perfectly achieved, well-executed
  adjective
  Past Passive Participle
  From su-saṃ-√pad (to be accomplished, succeed well).
  Prefixes: su+sam
  Root: pad (class 4)
• nirvṛti – peace, bliss, happiness, cessation, liberation (mokṣa)
  noun (feminine)
  From nir-√vṛt (to cease, turn away) + ti suffix.
  Prefix: nis
  Root: vṛt (class 1)

कोपेषु (kopeṣu) - in times of anger or wrath (in anger, in fits of rage)

(noun)

Locative, masculine, plural of kopa

kopa - anger, wrath, fury

From root √kup (to be agitated, angry).

Root: kup (class 4)

अकोपनतया (akopanatayā) - by means of non-anger or patience (by non-anger, by patience)

(noun)

Instrumental, feminine, singular of akopanatā

akopanatā - absence of anger, patience, calmness

Formed with negative 'a-' and 'kopanatā' (state of being angry), derived from 'kopana' (angry) + 'tā' (abstract suffix).

Compound type : nañ-tatpuruṣa (a+kopanatā)

• a – not, un-
  indeclinable
  Negative prefix.
• kopanatā – state of being angry, anger
  noun (feminine)
  From 'kopana' (angry) + 'tā' suffix.
  Root: kup (class 4)

वितीर्णावर्जनामृतम् (vitīrṇāvarjanāmṛtam) - that which bestows the nectar of conciliation (bestowing the nectar of conciliation/appeasement)

(noun)

neuter, singular of vitīrṇāvarjanāmṛta

vitīrṇāvarjanāmṛta - nectar of appeasement that is given; bestowing the nectar of conciliation

Compound of 'vitīrṇa' (bestowed, given) and 'āvarjanāmṛta' (nectar of conciliation). Bahuvrihi compound as an adjective.

Compound type : bahuvrīhi (vitīrṇa+āvarjanāmṛta)

• vitīrṇa – given, granted, bestowed, completed
  adjective
  Past Passive Participle
  From vi-√tṛ (to cross, accomplish, give).
  Prefix: vi
  Root: tṛ (class 1)
• āvarjanāmṛta – nectar of propitiation/conciliation
  noun (neuter)
  Compound of 'āvarjana' (propitiation, conciliation) and 'amṛta' (nectar, immortality).
  Prefix: ā
  Root: mṛ (class 1)