वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-7, chapter-4, verse-22

संध्यायास्तनयां लब्ध्वा विद्युत्केशो निशाचरः ।
रमते स तया सार्धं पौलोम्या मघवानिव ॥२२॥

22. saṃdhyāyāstanayāṃ labdhvā vidyutkeśo niśācaraḥ ,
ramate sa tayā sārdhaṃ paulomyā maghavāniva.

22. sandhyāyāḥ tanayām labdhvā vidyutkeśaḥ niśācaraḥ
ramate saḥ tayā sārdham paulomyā maghavā iva

22. vidyutkeśaḥ niśācaraḥ sandhyāyāḥ tanayām labdhvā
saḥ paulomyā maghavā iva tayā sārdham ramate

22. Having obtained Sandhyā's daughter, Vidyutkeśa, the night-wanderer (rākṣasa), revels with her, just as Indra (Maghavan) does with Paulomī.

Words meanings summery:

• सन्ध्यायाः (sandhyāyāḥ) - of Sandhyā

• तनयाम् (tanayām) - daughter

• लब्ध्वा (labdhvā) - having obtained, having received

• विद्युत्केशः (vidyutkeśaḥ) - Vidyutkeśa

• निशाचरः (niśācaraḥ) - referring to Vidyutkeśa as a rākṣasa (night-wanderer, demon, rākṣasa)

• रमते (ramate) - he enjoys, revels, sports

• सः (saḥ) - referring to Vidyutkeśa (he)

• तया (tayā) - with Sandhyā's daughter (with her)

• सार्धम् (sārdham) - with, along with, together with

• पौलोम्या (paulomyā) - Paulomī, the wife of Indra (with Paulomī)

• मघवा (maghavā) - Indra

• इव (iva) - like, as, as if

Words meanings and morphology

सन्ध्यायाः (sandhyāyāḥ) - of Sandhyā

(proper noun)

Genitive, feminine, singular of sandhyā

sandhyā - twilight; name of a divine being/goddess

तनयाम् (tanayām) - daughter

(noun)

Accusative, feminine, singular of tanayā

tanayā - daughter

लब्ध्वा (labdhvā) - having obtained, having received

(indeclinable)

Absolutive (Gerund)

Formed from the root labh with the tvā suffix.

Root: labh (class 1)

विद्युत्केशः (vidyutkeśaḥ) - Vidyutkeśa

(proper noun)

Nominative, masculine, singular of vidyutkeśa

vidyutkeśa - Vidyutkeśa (proper name, 'lightning-haired')

Compound type : bahuvrīhi (vidyut+keśa)

• vidyut – lightning, electricity
  noun (feminine)
• keśa – hair
  noun (masculine)

निशाचरः (niśācaraḥ) - referring to Vidyutkeśa as a rākṣasa (night-wanderer, demon, rākṣasa)

(noun)

Nominative, masculine, singular of niśācara

niśācara - night-wanderer, a demon or rākṣasa

Compound type : upapada-tatpuruṣa (niśā+cara)

• niśā – night
  noun (feminine)
• cara – wanderer, moving, going
  noun (masculine)
  Derived from root car with suffix a.
  Root: car (class 1)

रमते (ramate) - he enjoys, revels, sports

(verb)

3rd person , singular, middle, present (Laṭ) of ram

Root: ram (class 1)

सः (saḥ) - referring to Vidyutkeśa (he)

(pronoun)

Nominative, masculine, singular of tad

tad - that, he, she, it

तया (tayā) - with Sandhyā's daughter (with her)

(pronoun)

Instrumental, feminine, singular of tad

tad - that, he, she, it

सार्धम् (sārdham) - with, along with, together with

(indeclinable)

पौलोम्या (paulomyā) - Paulomī, the wife of Indra (with Paulomī)

(proper noun)

Instrumental, feminine, singular of paulomī

paulomī - Paulomī (name of Śacī, Indra's wife, daughter of Puloman)

मघवा (maghavā) - Indra

(proper noun)

Nominative, masculine, singular of maghavan

maghavan - Indra (epithet meaning 'rich', 'bountiful', 'lord of wealth')

इव (iva) - like, as, as if

(indeclinable)