महाभारतः mahābhārataḥ - book-8, chapter-30, verse-29

तत्र स्म राक्षसी गाति सदा कृष्णचतुर्दशीम् ।
नगरे शाकले स्फीते आहत्य निशि दुन्दुभिम् ॥२९॥

29. tatra sma rākṣasī gāti sadā kṛṣṇacaturdaśīm ,
nagare śākale sphīte āhatya niśi dundubhim.

29. tatra sma rākṣasī gāti sadā kṛṣṇacaturdaśīm
nagare śākale sphīte āhatya niśi dundubhim

29. tatra rākṣasī sadā kṛṣṇacaturdaśīm sphīte
śākale nagare niśi dundubhim āhatya sma gāti

29. There, a female demon (rākṣasī) used to sing constantly on the Kṛṣṇa Caturdaśī, having beaten a drum at night in the prosperous city of Śākala.

Words meanings summery:

• तत्र (tatra) - there, then

• स्म (sma) - (particle indicating past action with present tense verb)

• राक्षसी (rākṣasī) - a female demon

• गाति (gāti) - sings

• सदा (sadā) - always, ever, perpetually

• कृष्णचतुर्दशीम् (kṛṣṇacaturdaśīm) - the dark fourteenth day of the lunar fortnight

• नगरे (nagare) - in the city

• शाकले (śākale) - in Śākala (city of)

• स्फीते (sphīte) - in the prosperous, in the flourishing

• आहत्य (āhatya) - having struck, having beaten

• निशि (niśi) - at night, in the night

• दुन्दुभिम् (dundubhim) - a drum

Words meanings and morphology

तत्र (tatra) - there, then

(indeclinable)

स्म (sma) - (particle indicating past action with present tense verb)

(indeclinable)

राक्षसी (rākṣasī) - a female demon

(noun)

Nominative, feminine, singular of rākṣasī

rākṣasī - a female demon, a demoness

Feminine form of rākṣasa.

Note: Subject of gāti.

गाति (gāti) - sings

(verb)

3rd person , singular, active, present (laṭ) of gai

Root: gai (class 2)

Note: Used with sma to denote habitual past.

सदा (sadā) - always, ever, perpetually

(indeclinable)

कृष्णचतुर्दशीम् (kṛṣṇacaturdaśīm) - the dark fourteenth day of the lunar fortnight

(noun)

Accusative, feminine, singular of kṛṣṇacaturdaśī

kṛṣṇacaturdaśī - the fourteenth day of the dark fortnight (of the lunar month)

Compound: kṛṣṇa (dark) + caturdaśī (fourteenth day).

Compound type : karmadhāraya (kṛṣṇa+caturdaśī)

• kṛṣṇa – dark, black
  adjective
• caturdaśī – the fourteenth day (of a lunar fortnight)
  noun (feminine)

Note: Refers to the object of singing or the time (accusative used for time duration/point).

नगरे (nagare) - in the city

(noun)

Locative, neuter, singular of nagara

nagara - city, town

शाकले (śākale) - in Śākala (city of)

(proper noun)

Locative, neuter, singular of śākala

śākala - belonging to Śākala, city of Śākala

स्फीते (sphīte) - in the prosperous, in the flourishing

(adjective)

Locative, neuter, singular of sphīta

sphīta - swollen, increased, prosperous, flourishing, rich

past passive participle

From root √sphāy (to grow, expand).

Root: sphāy (class 1)

आहत्य (āhatya) - having struck, having beaten

(indeclinable)

absolutive (gerund with prefix)

From root √han (to strike, kill) with upasarga ā- and suffix -lyap.

Prefix: ā

Root: han (class 2)

निशि (niśi) - at night, in the night

(noun)

Locative, feminine, singular of niś

niś - night

दुन्दुभिम् (dundubhim) - a drum

(noun)

Accusative, masculine, singular of dundubhi

dundubhi - a large drum, a war-drum

Note: Object of āhatya.