योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-105, verse-19

अथातिसंभ्रमाश्चर्यखिन्नास्मृतिमुखो बभौ ।
आसन्नमृत्युरालोक्य राहुमिन्दुरिवाम्बरे ॥ १९ ॥

athātisaṃbhramāścaryakhinnāsmṛtimukho babhau ,
āsannamṛtyurālokya rāhumindurivāmbare 19

19. atha atisaṃbhramāścaryakhinnāsmṛtimukhaḥ babhau
āsannamṛtyuḥ ālokya rāhum induḥ iva ambare

19. atha āsannamṛtyuḥ induḥ iva ambare rāhum ālokya
atisaṃbhramāścaryakhinnāsmṛtimukhaḥ babhau

19. Then he appeared with a face characterized by extreme agitation, astonishment, distress, and a loss of memory, like the moon in the sky, whose death is imminent, upon seeing Rāhu.

Words meanings summery:

• अथ (atha) - then, thereupon (then, now, thereupon, therefore)

• अतिसंभ्रमाश्चर्यखिन्नास्मृतिमुखः (atisaṁbhramāścaryakhinnāsmṛtimukhaḥ) - having a face characterized by extreme agitation, astonishment, distress, and a loss of memory (having a face characterized by great agitation, astonishment, distress, and loss of memory)

• बभौ (babhau) - appeared (shone, appeared, became visible)

• आसन्नमृत्युः (āsannamṛtyuḥ) - whose death is imminent (whose death is near, approaching death)

• आलोक्य (ālokya) - upon seeing (having seen, having perceived, after seeing)

• राहुम् (rāhum) - Rāhu (Rāhu (the mythical planet causing eclipses))

• इन्दुः (induḥ) - the moon (moon, drop, Soma)

• इव (iva) - like (like, as if, as it were)

• अम्बरे (ambare) - in the sky (in the sky, in a garment, in a cloth)

Words meanings and morphology

अथ (atha) - then, thereupon (then, now, thereupon, therefore)

(indeclinable)

अतिसंभ्रमाश्चर्यखिन्नास्मृतिमुखः (atisaṁbhramāścaryakhinnāsmṛtimukhaḥ) - having a face characterized by extreme agitation, astonishment, distress, and a loss of memory (having a face characterized by great agitation, astonishment, distress, and loss of memory)

(adjective)

Nominative, masculine, singular of atisaṃbhramāścaryakhinnāsmṛtimukha

atisaṁbhramāścaryakhinnāsmṛtimukha - one whose face shows extreme agitation, astonishment, distress, and loss of memory

Compound type : bahuvrihi (atisaṃbhrama+āścarya+khinna+asmṛti+mukha)

• atisaṃbhrama – great agitation, extreme confusion
  noun (masculine)
  Prefixes: ati+sam
  Root: bhram (class 1)
• āścarya – wonder, astonishment, surprise
  noun (neuter)
  Prefix: ā
  Root: car (class 1)
• khinna – distressed, weary, sad
  adjective (masculine)
  Past Passive Participle
  Derived from root 'khid' (to be distressed)
  Root: khid (class 7)
• asmṛti – loss of memory, forgetfulness
  noun (feminine)
  Negative prefix 'a-' + 'smṛti' (memory)
  Root: smṛ (class 1)
• mukha – face, mouth, front
  noun (neuter)

बभौ (babhau) - appeared (shone, appeared, became visible)

(verb)

3rd person , singular, active, past perfect (liṭ) of babhau

perfect tense

Root 'bhā' (class 2) in perfect active 3rd person singular.

Root: bhā (class 2)

आसन्नमृत्युः (āsannamṛtyuḥ) - whose death is imminent (whose death is near, approaching death)

(adjective)

Nominative, masculine, singular of āsannamṛtyu

āsannamṛtyu - one whose death is near, having approaching death

Compound of 'āsanna' (near, approaching) and 'mṛtyu' (death).

Compound type : bahuvrihi (āsanna+mṛtyu)

• āsanna – near, proximate, arrived, present
  adjective (masculine)
  Past Passive Participle
  Derived from root 'as' (to sit, to be near) with prefix 'ā'.
  Prefix: ā
  Root: as (class 2)
• mṛtyu – death, Yama (god of death)
  noun (masculine)
  Derived from root 'mṛ' (to die).
  Root: mṛ (class 6)

Note: Refers to the moon (induḥ) in the simile.

आलोक्य (ālokya) - upon seeing (having seen, having perceived, after seeing)

(indeclinable)

absolutive

Absolutive (gerund) form from root 'lok' (to see) with prefix 'ā'.

Prefix: ā

Root: lok (class 10)

राहुम् (rāhum) - Rāhu (Rāhu (the mythical planet causing eclipses))

(proper noun)

Accusative, masculine, singular of rāhu

rāhu - Rāhu (a mythical daimon believed to cause solar and lunar eclipses)

Note: Object of 'ālokya'.

इन्दुः (induḥ) - the moon (moon, drop, Soma)

(noun)

Nominative, masculine, singular of indu

indu - moon, drop, Soma (Vedic ritual drink)

Root: in (class 2)

Note: Subject of the simile.

इव (iva) - like (like, as if, as it were)

(indeclinable)

अम्बरे (ambare) - in the sky (in the sky, in a garment, in a cloth)

(noun)

Locative, neuter, singular of ambara

ambara - sky, atmosphere, garment, cloth

Note: Location of the moon.