योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-57, verse-4

अहंभावपिशाचोऽयमज्ञानशिशुनामुना ।
अविद्यमान एवान्तः कल्पितस्तेन संस्थितः ॥ ४ ॥

ahaṃbhāvapiśāco'yamajñānaśiśunāmunā ,
avidyamāna evāntaḥ kalpitastena saṃsthitaḥ 4

4. ayam ahaṃbhāva-piśācaḥ ajñāna-śiśunā amunā
kalpitaḥ avidyamānaḥ eva antaḥ tena saṃsthitaḥ

4. ayam ahaṃbhāva-piśācaḥ ajñāna-śiśunā amunā
kalpitaḥ avidyamānaḥ eva antaḥ tena saṃsthitaḥ

4. This ego-sense (ahaṃbhāva)-demon, imagined by this child of ignorance (ajñāna), resides within, though not truly existing, established by that very ignorance.

Words meanings summery:

• अयम् (ayam) - this, he

• अहंभाव-पिशाचः (ahaṁbhāva-piśācaḥ) - the demon of ego-sense, the ego-demon

• अज्ञान-शिशुना (ajñāna-śiśunā) - by the child of ignorance

• अमुना (amunā) - by this, by that

• कल्पितः (kalpitaḥ) - imagined, created, fabricated

• अविद्यमानः (avidyamānaḥ) - not existing, non-existent

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

• अन्तः (antaḥ) - inside, within, internally

• तेन (tena) - by that

• संस्थितः (saṁsthitaḥ) - established, situated, residing

Words meanings and morphology

अयम् (ayam) - this, he

(pronoun)

Nominative, masculine, singular of idam

idam - this, that

अहंभाव-पिशाचः (ahaṁbhāva-piśācaḥ) - the demon of ego-sense, the ego-demon

(noun)

Nominative, masculine, singular of ahaṃbhāva-piśāca

ahaṁbhāva-piśāca - ego-sense demon, demon of egoism

Compound type : karmadhāraya (ahaṃbhāva+piśāca)

• ahaṃbhāva – egoism, ego-sense, self-conceit
  noun (masculine)
• piśāca – demon, goblin, ghoul
  noun (masculine)

अज्ञान-शिशुना (ajñāna-śiśunā) - by the child of ignorance

(noun)

Instrumental, masculine, singular of ajñāna-śiśu

ajñāna-śiśu - child of ignorance

Compound type : ṣaṣṭhī-tatpuruṣa (ajñāna+śiśu)

• ajñāna – ignorance (ajñāna), want of knowledge
  noun (neuter)
• śiśu – child, infant
  noun (masculine)

अमुना (amunā) - by this, by that

(pronoun)

Instrumental, masculine, singular of adas

adas - that (demonstrative pronoun)

कल्पितः (kalpitaḥ) - imagined, created, fabricated

(adjective)

Nominative, masculine, singular of kalpita

kalpita - imagined, created, fabricated, fictitious

Past Passive Participle

Derived from root kḷp with suffix -ta.

Root: kḷp (class 1)

अविद्यमानः (avidyamānaḥ) - not existing, non-existent

(adjective)

Nominative, masculine, singular of avidyamāna

avidyamāna - not existing, non-existent, absent

Present Active Participle (negative)

Negative prefix 'a-' + present active participle of 'vid' (to be, exist).

Prefix: a

Root: vid (class 2)

एव (eva) - indeed, only, just, exactly

(indeclinable)

अन्तः (antaḥ) - inside, within, internally

(indeclinable)

तेन (tena) - by that

(pronoun)

Instrumental, masculine, singular of tad

tad - that, it

संस्थितः (saṁsthitaḥ) - established, situated, residing

(adjective)

Nominative, masculine, singular of saṃsthita

saṁsthita - established, situated, standing, residing, existing

Past Passive Participle

Derived from root sthā with upasarga 'sam'.

Prefix: sam

Root: sthā (class 1)