महाभारतः mahābhārataḥ - book-3, chapter-82, verse-123

ततो गच्छेत राजेन्द्र कौशिकस्य मुनेर्ह्रदम् ।
यत्र सिद्धिं परां प्राप्तो विश्वामित्रोऽथ कौशिकः ॥१२३॥

123. tato gaccheta rājendra kauśikasya munerhradam ,
yatra siddhiṁ parāṁ prāpto viśvāmitro'tha kauśikaḥ.

123. tataḥ gaccheta rājendra kauśikasya muneḥ hradam
yatra siddhim parām prāptaḥ viśvāmitraḥ atha kauśikaḥ

123. Then, O great king, one should go to the lake of the sage Kauśika, where Viśvāmitra, also known as Kauśika, attained supreme spiritual accomplishment (siddhi).

Words meanings summery:

• ततः (tataḥ) - then, thereafter, from there

• गच्छेत (gaccheta) - one should go, he should go

• राजेन्द्र (rājendra) - O king of kings, O great king

• कौशिकस्य (kauśikasya) - of the sage Kauśika (another name for Viśvāmitra) (of Kauśika)

• मुनेः (muneḥ) - of the sage

• ह्रदम् (hradam) - to the lake, to the pond

• यत्र (yatra) - where, in which

• सिद्धिम् (siddhim) - spiritual accomplishment, perfection, success

• पराम् (parām) - supreme, highest, excellent

• प्राप्तः (prāptaḥ) - attained, obtained, reached

• विश्वामित्रः (viśvāmitraḥ) - the celebrated Vedic sage Viśvāmitra (Viśvāmitra)

• अथ (atha) - then, moreover, also

• कौशिकः (kauśikaḥ) - the sage Kauśika (another name for Viśvāmitra) (Kauśika)

Words meanings and morphology

ततः (tataḥ) - then, thereafter, from there

(indeclinable)

गच्छेत (gaccheta) - one should go, he should go

(verb)

3rd person , singular, active, optative (vidhiliṅ) of gam

Root: gam (class 1)

राजेन्द्र (rājendra) - O king of kings, O great king

(noun)

Vocative, masculine, singular of rājendra

rājendra - king of kings, supreme lord, great king

Compound type : tatpuruṣa (rājan+indra)

• rājan – king, ruler
  noun (masculine)
• indra – lord, chief, foremost; the god Indra
  noun (masculine)

कौशिकस्य (kauśikasya) - of the sage Kauśika (another name for Viśvāmitra) (of Kauśika)

(proper noun)

Genitive, masculine, singular of kauśika

kauśika - descendant of Kuśika; a name often applied to Viśvāmitra

मुनेः (muneḥ) - of the sage

(noun)

Genitive, masculine, singular of muni

muni - sage, ascetic, seer, saint

ह्रदम् (hradam) - to the lake, to the pond

(noun)

Accusative, masculine, singular of hrada

hrada - lake, pond, deep pool

यत्र (yatra) - where, in which

(indeclinable)

सिद्धिम् (siddhim) - spiritual accomplishment, perfection, success

(noun)

Accusative, feminine, singular of siddhi

siddhi - perfection, accomplishment, success, spiritual power

पराम् (parām) - supreme, highest, excellent

(adjective)

Accusative, feminine, singular of para

para - supreme, highest, ultimate, excellent, best

Note: Agrees with siddhim

प्राप्तः (prāptaḥ) - attained, obtained, reached

(participle)

Nominative, masculine, singular of prāpta

prāpta - obtained, reached, attained, acquired

Past Passive Participle

Derived from root āp with prefix pra and suffix -ta

Prefix: pra

Root: āp (class 5)

Note: Agrees with Viśvāmitraḥ

विश्वामित्रः (viśvāmitraḥ) - the celebrated Vedic sage Viśvāmitra (Viśvāmitra)

(proper noun)

Nominative, masculine, singular of viśvāmitra

viśvāmitra - Viśvāmitra (a proper name, lit. 'friend of all')

Compound type : bahuvrīhi (viśva+mitra)

• viśva – all, whole, entire
  adjective (masculine)
• mitra – friend, companion
  noun (masculine)

अथ (atha) - then, moreover, also

(indeclinable)

कौशिकः (kauśikaḥ) - the sage Kauśika (another name for Viśvāmitra) (Kauśika)

(proper noun)

Nominative, masculine, singular of kauśika

kauśika - descendant of Kuśika; a name often applied to Viśvāmitra