योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-4, verse-40

इदमस्मात्समुत्पन्नं मृगतृष्णाम्बुसंनिभम् ।
रूपं तु क्षणसंकल्पाद्द्वितीयेन्दुभ्रमोपमम् ॥ ४० ॥

idamasmātsamutpannaṃ mṛgatṛṣṇāmbusaṃnibham ,
rūpaṃ tu kṣaṇasaṃkalpāddvitīyendubhramopamam 40

40. idam asmāt samutpannam mṛgatṛṣṇāmbu-saṃnibham
rūpam tu kṣaṇa-saṃkalpāt dvitīyendu-bhrama-upamam

40. idam rūpam asmāt samutpannam mṛgatṛṣṇāmbu-saṃnibham
tu kṣaṇa-saṃkalpāt dvitīyendu-bhrama-upamam

40. This form, which originates from that [mind/perception], is like the water of a mirage. Indeed, it is comparable to the illusion of a second moon, arising from a momentary thought (saṃkalpa).

Words meanings summery:

• इदम् (idam) - this

• अस्मात् (asmāt) - from this, from that

• समुत्पन्नम् (samutpannam) - arisen, produced, originated

• मृगतृष्णाम्बु-संनिभम् (mṛgatṛṣṇāmbu-saṁnibham) - resembling the water of a mirage, like mirage-water

• रूपम् (rūpam) - form, appearance, nature

• तु (tu) - but, indeed, however

• क्षण-संकल्पात् (kṣaṇa-saṁkalpāt) - from a momentary thought/conception

• द्वितीयेन्दु-भ्रम-उपमम् (dvitīyendu-bhrama-upamam) - resembling the illusion of a second moon, like the illusion of a second moon

Words meanings and morphology

इदम् (idam) - this

(pronoun)

neuter, singular of idam

idam - this

अस्मात् (asmāt) - from this, from that

(pronoun)

Ablative, neuter, singular of idam

idam - this

समुत्पन्नम् (samutpannam) - arisen, produced, originated

(adjective)

neuter, singular of samutpanna

samutpanna - arisen, produced

Past Passive Participle

Derived from root pad (to go, move) with prefixes sam- and ud-.

Prefixes: sam+ud

Root: pad (class 4)

मृगतृष्णाम्बु-संनिभम् (mṛgatṛṣṇāmbu-saṁnibham) - resembling the water of a mirage, like mirage-water

(adjective)

neuter, singular of mṛgatṛṣṇāmbusaṃnibha

mṛgatṛṣṇāmbusaṁnibha - resembling the water of a mirage

Compound type : Upamāna Tatpuruṣa (mṛgatṛṣṇā+ambu+saṃnibha)

• mṛgatṛṣṇā – mirage (lit. deer's thirst)
  noun (feminine)
• ambu – water
  noun (neuter)
• saṃnibha – resembling, similar to
  adjective (masculine/feminine/neuter)

रूपम् (rūpam) - form, appearance, nature

(noun)

neuter, singular of rūpa

rūpa - form, appearance

तु (tu) - but, indeed, however

(indeclinable)

क्षण-संकल्पात् (kṣaṇa-saṁkalpāt) - from a momentary thought/conception

(noun)

Ablative, masculine, singular of kṣaṇasaṃkalpa

kṣaṇasaṁkalpa - momentary thought, instant resolve

Compound type : Karmadhāraya (kṣaṇa+saṃkalpa)

• kṣaṇa – moment, instant
  noun (masculine)
• saṃkalpa – conception, intention, volition, thought (saṃkalpa)
  noun (masculine)
  From root kḷp (to be able, to arrange) with prefix sam-.
  Prefix: sam
  Root: kḷp (class 1)

द्वितीयेन्दु-भ्रम-उपमम् (dvitīyendu-bhrama-upamam) - resembling the illusion of a second moon, like the illusion of a second moon

(adjective)

neuter, singular of dvitīyendubhramopama

dvitīyendubhramopama - resembling the illusion of a second moon

Compound type : Upamāna Tatpuruṣa (dvitīya+indu+bhrama+upama)

• dvitīya – second
  adjective (masculine/feminine/neuter)
• indu – moon
  noun (masculine)
• bhrama – illusion, error, wandering
  noun (masculine)
• upama – similar, comparable
  adjective (masculine/feminine/neuter)