योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-2, verse-12

अथ रामादृतेऽन्येषां तत्र तद्व्यवहारिणी ।
व्यतीयाय शनैः श्यामा मुहूर्त इव शोभना ॥ १२ ॥

atha rāmādṛte'nyeṣāṃ tatra tadvyavahāriṇī ,
vyatīyāya śanaiḥ śyāmā muhūrta iva śobhanā 12

12. atha rāmāt ṛte anyeṣām tatra tadvayavahāriṇī
vyatīyāya śanaiḥ śyāmā muhūrtaḥ iva śobhanā

12. atha śobhanā tatra tadvayavahāriṇī śyāmā rāmāt
ṛte anyeṣām śanaiḥ vyatīyāya muhūrtaḥ iva

12. Then, for everyone else, except Rama, the beautiful dark-hued night, which unfolded its customary delights, passed slowly, yet seemed like a mere moment.

Words meanings summery:

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

• रामात् (rāmāt) - from Rama

• ऋते (ṛte) - except for (without, except for, besides)

• अन्येषाम् (anyeṣām) - for others (of others, for others)

• तत्र (tatra) - there (in that situation, or at that place/time) (there, in that place, in that matter)

• तद्वयवहारिणी (tadvayavahāriṇī) - which unfolded its customary delights/activities (behaving in that way, conducting that affair, accustomed to that)

• व्यतीयाय (vyatīyāya) - passed (by) (went by, passed)

• शनैः (śanaiḥ) - slowly (slowly, gradually, gently)

• श्यामा (śyāmā) - dark-hued night (dark-hued, black, evening, night, a young woman)

• मुहूर्तः (muhūrtaḥ) - a mere moment (a moment, a short time (48 minutes))

• इव (iva) - like (like, as, as if)

• शोभना (śobhanā) - beautiful (beautiful, lovely, auspicious)

Words meanings and morphology

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

(indeclinable)

रामात् (rāmāt) - from Rama

(proper noun)

Ablative, masculine, singular of rāma

rāma - Rama (a proper name, hero of Ramayana), pleasing, dark

Note: Used with ṛte

ऋते (ṛte) - except for (without, except for, besides)

(indeclinable)

Postposition governing ablative

अन्येषाम् (anyeṣām) - for others (of others, for others)

(pronoun)

Genitive, masculine, plural of anya

anya - other, different, another

Note: Refers to the other Raghu princes.

तत्र (tatra) - there (in that situation, or at that place/time) (there, in that place, in that matter)

(indeclinable)

From tad (that) + suffix tra (locative sense)

तद्वयवहारिणी (tadvayavahāriṇī) - which unfolded its customary delights/activities (behaving in that way, conducting that affair, accustomed to that)

(adjective)

Nominative, feminine, singular of tadvayavahāriṇī

tadvayavahāriṇī - behaving in that way, doing that action, accustomed to that

Feminine nominative singular. Compound of tad (that) and vyavahāriṇī (performing, accustomed).

Compound type : tatpuruṣa (tad+vyavahāriṇī)

• tad – that, it
  pronoun (neuter)
• vyavahāriṇī – behaving, carrying on, performing, accustomed to
  adjective (feminine)
  agent noun
  From root hṛ (to carry) with prefixes vi-ava and suffix ṇin
  Prefixes: vi+ava
  Root: hṛ (class 1)

Note: Qualifies śyāmā

व्यतीयाय (vyatīyāya) - passed (by) (went by, passed)

(verb)

3rd person , singular, active, perfect (lit) of vyatī-i

Perfect active

Reduplicated perfect form of i (to go) with prefixes vi-ati

Prefixes: vi+ati

Root: i (class 2)

Note: Predicate of the sentence.

शनैः (śanaiḥ) - slowly (slowly, gradually, gently)

(indeclinable)

Adverbial form, from śana (slow)

श्यामा (śyāmā) - dark-hued night (dark-hued, black, evening, night, a young woman)

(noun)

Nominative, feminine, singular of śyāmā

śyāmā - dark-hued woman, night, twilight

Feminine form of śyāma (dark, black)

Note: Subject of vyatīyāya.

मुहूर्तः (muhūrtaḥ) - a mere moment (a moment, a short time (48 minutes))

(noun)

Nominative, masculine, singular of muhūrta

muhūrta - a moment, a period of time, 48 minutes

Note: Used in comparison with iva.

इव (iva) - like (like, as, as if)

(indeclinable)

शोभना (śobhanā) - beautiful (beautiful, lovely, auspicious)

(adjective)

Nominative, feminine, singular of śobhanā

śobhanā - beautiful, lovely, radiant, auspicious

Feminine nominative singular of śobhana (beautiful, shining).

Root: śubh (class 1)