योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-91, verse-3

दीपादिभिः शनैः स्निग्धैर्दशाशतविहारिभिः ।
प्रत्यक्षीकृतसर्वार्थं प्रतिगेहं सुराजवत् ॥ ३ ॥

dīpādibhiḥ śanaiḥ snigdhairdaśāśatavihāribhiḥ ,
pratyakṣīkṛtasarvārthaṃ pratigehaṃ surājavat 3

3. dīpādibhiḥ śanaiḥ snigdhaiḥ daśāśatavihāribhiḥ
pratyakṣīkṛtasarvārtham pratigehaṃ surājavat

3. dīpādibhiḥ śanaiḥ snigdhaiḥ daśāśatavihāribhiḥ
pratigehaṃ pratyakṣīkṛtasarvārtham surājavat

3. By means of gentle, radiant lamps and similar sources, whose light spreads in hundreds of directions, every object is made directly perceptible throughout every house, as if by a benevolent king.

Words meanings summery:

• दीपादिभिः (dīpādibhiḥ) - by gentle, radiant lamps and similar sources (by lamps etc., by lamps and others)

• शनैः (śanaiḥ) - gently, smoothly (describing the light) (slowly, gently, gradually)

• स्निग्धैः (snigdhaiḥ) - by radiant, by lustrous (describing the lamps) (by shining, by smooth, by oily, by affectionate ones)

• दशाशतविहारिभिः (daśāśatavihāribhiḥ) - by those whose light spreads in hundreds of directions (modifying lamps) (by those moving in hundreds of ways/wicks, having hundreds of wicks)

• प्रत्यक्षीकृतसर्वार्थम् (pratyakṣīkṛtasarvārtham) - making every object distinctly visible (making all objects directly visible, having all objects directly seen)

• प्रतिगेहं (pratigehaṁ) - throughout every house (in every house, house by house)

• सुराजवत् (surājavat) - as if by a benevolent king (like a good king, as a good king)

Words meanings and morphology

दीपादिभिः (dīpādibhiḥ) - by gentle, radiant lamps and similar sources (by lamps etc., by lamps and others)

(noun)

Instrumental, masculine, plural of dīpādi

dīpādi - lamp and others, beginning with lamps

Compound type : dvandva (dīpa+ādi)

• dīpa – lamp, light
  noun (masculine)
  Root: dīp (class 4)
• ādi – beginning, start, and so on, etc.
  indeclinable

Note: Refers to lamps and similar sources of light.

शनैः (śanaiḥ) - gently, smoothly (describing the light) (slowly, gently, gradually)

(indeclinable)

Note: Adverbial usage.

स्निग्धैः (snigdhaiḥ) - by radiant, by lustrous (describing the lamps) (by shining, by smooth, by oily, by affectionate ones)

(adjective)

Instrumental, masculine, plural of snigdha

snigdha - smooth, glossy, oily, unctuous, shining, soft, tender, affectionate

Past Passive Participle

Derived from root `snih` (to be sticky, to love) with suffix `kta`.

Root: snih (class 4)

Note: Modifies `dīpādibhiḥ`.

दशाशतविहारिभिः (daśāśatavihāribhiḥ) - by those whose light spreads in hundreds of directions (modifying lamps) (by those moving in hundreds of ways/wicks, having hundreds of wicks)

(adjective)

Instrumental, masculine, plural of daśāśatavihārin

daśāśatavihārin - one moving in hundreds of ways/directions; one having hundreds of wicks

Compound type : bahuvrīhi / tatpuruṣa (daśā+śata+vihārin)

• daśā – wick, state, condition, fringe
  noun (feminine)
• śata – hundred
  numeral / noun (neuter)
• vihārin – moving, wandering, enjoying
  adjective (masculine)
  Agent Noun / Adjective
  Derived from root `hṛ` with prefix `vi` and suffix `ṇini`.
  Prefix: vi
  Root: hṛ (class 1)

Note: Modifies `dīpādibhiḥ`.

प्रत्यक्षीकृतसर्वार्थम् (pratyakṣīkṛtasarvārtham) - making every object distinctly visible (making all objects directly visible, having all objects directly seen)

(adjective)

Accusative, neuter, singular of pratyakṣīkṛtasarvārtha

pratyakṣīkṛtasarvārtha - making all objects visible/perceptible; that by which all objects are made visible

Compound type : bahuvrīhi / karmadhāraya (pratyakṣīkṛta+sarva+artha)

• pratyakṣīkṛta – made visible, made manifest, perceived directly
  adjective (neuter)
  Past Passive Participle (secondary derivative)
  Derived from `pratyakṣī-kṛ` (to make perceptible) with suffix `kta`.
  Prefixes: prati+akṣī
  Root: kṛ (class 8)
• sarva – all, every, whole
  pronoun / adjective (neuter)
• artha – object, thing, purpose, meaning
  noun (masculine)

Note: Functions adverbially, describing the effect of the lamps.

प्रतिगेहं (pratigehaṁ) - throughout every house (in every house, house by house)

(indeclinable)

Adverbial compound (avyayībhāva) of `prati` (each) and `geha` (house).

Compound type : avyayībhāva (prati+geha)

• prati – towards, against, each, every
  indeclinable
• geha – house, dwelling
  noun (neuter)

Note: Adverbial usage.

सुराजवत् (surājavat) - as if by a benevolent king (like a good king, as a good king)

(indeclinable)

Formed with the suffix `vat` (like, as) to `surāja` (good king).

Note: Adverbial suffix `vat`.