महाभारतः mahābhārataḥ - book-5, chapter-158, verse-20

प्राच्यैः प्रतीच्यैरथ दाक्षिणात्यैरुदीच्यकाम्बोजशकैः खशैश्च ।
शाल्वैः समत्स्यैः कुरुमध्यदेशैर्म्लेच्छैः पुलिन्दैर्द्रविडान्ध्रकाञ्च्यैः ॥२०॥

20. prācyaiḥ pratīcyairatha dākṣiṇātyai;rudīcyakāmbojaśakaiḥ khaśaiśca ,
śālvaiḥ samatsyaiḥ kurumadhyadeśai;rmlecchaiḥ pulindairdraviḍāndhrakāñcyaiḥ.

20. prācyaiḥ pratīcyaiḥ atha dākṣiṇātyaiḥ
udīcyakāmbojaśakaiḥ khaśaiḥ ca |
śālvaiḥ samatsyaiḥ kurumadhyadeśaiḥ
mlecchaiḥ pulindaiḥ draviḍāndhrakañcyaiḥ

20. prācyaiḥ pratīcyaiḥ atha dākṣiṇātyaiḥ
udīcyakāmbojaśakaiḥ khaśaiḥ ca
śālvaiḥ samatsyaiḥ kurumadhyadeśaiḥ
mlecchaiḥ pulindaiḥ draviḍāndhrakañcyaiḥ

20. (This army is composed of warriors) from the East, from the West, then from the South, along with those from the North, the Kambojas, the Śakas, and the Khaśas; also the Śālvas and Matsyas, those from the central Kurus region, and Mlecchas, Pulindas, Dravidas, Andhras, and Kancīs.

Words meanings summery:

• प्राच्यैः (prācyaiḥ) - by warriors from the East (by the Easterners, from the eastern regions)

• प्रतीच्यैः (pratīcyaiḥ) - by warriors from the West (by the Westerners, from the western regions)

• अथ (atha) - then, and (then, and, moreover)

• दाक्षिणात्यैः (dākṣiṇātyaiḥ) - by warriors from the South (by the Southerners, from the southern regions)

• उदीच्यकाम्बोजशकैः (udīcyakāmbojaśakaiḥ) - by warriors from the North, the Kambojas, and the Śakas (by the Northerners, Kambojas, and Śakas)

• खशैः (khaśaiḥ) - by the Khaśas (name of a people)

• च (ca) - and, also

• शाल्वैः (śālvaiḥ) - by the Śālvas (name of a people)

• समत्स्यैः (samatsyaiḥ) - by the Matsyas (together with the Matsyas, by the Matsyas)

• कुरुमध्यदेशैः (kurumadhyadeśaiḥ) - by warriors from the Kuru-Madhyadeśa region (by those from the Kuru-Madhyadeśa (central region of Kurus))

• म्लेच्छैः (mlecchaiḥ) - by the Mlecchas (foreigners, barbarians)

• पुलिन्दैः (pulindaiḥ) - by the Pulindas (name of a wild tribe)

• द्रविडान्ध्रकञ्च्यैः (draviḍāndhrakañcyaiḥ) - by warriors from the Dravida, Andhra, and Kancī regions (by the Dravidas, Andhras, and Kancīs)

Words meanings and morphology

प्राच्यैः (prācyaiḥ) - by warriors from the East (by the Easterners, from the eastern regions)

(adjective)

Instrumental, masculine, plural of prācya

prācya - eastern, from the east, an Easterner

Derived from prāc (east)

प्रतीच्यैः (pratīcyaiḥ) - by warriors from the West (by the Westerners, from the western regions)

(adjective)

Instrumental, masculine, plural of pratīcya

pratīcya - western, from the west, a Westerner

Derived from pratīc (west)

अथ (atha) - then, and (then, and, moreover)

(indeclinable)

दाक्षिणात्यैः (dākṣiṇātyaiḥ) - by warriors from the South (by the Southerners, from the southern regions)

(adjective)

Instrumental, masculine, plural of dākṣiṇātya

dākṣiṇātya - southern, a Southerner

Derived from dakṣiṇā (south)

उदीच्यकाम्बोजशकैः (udīcyakāmbojaśakaiḥ) - by warriors from the North, the Kambojas, and the Śakas (by the Northerners, Kambojas, and Śakas)

(noun)

Instrumental, masculine, plural of udīcyakāmbojaśaka

udīcyakāmbojaśaka - Northerners, Kambojas, and Śakas

Compound type : dvandva (udīcya+kāmboja+śaka)

• udīcya – northern, a Northerner
  adjective (masculine)
  Derived from udīc (north)
• kāmboja – Kamboja (name of a people/country in ancient India)
  proper noun (masculine)
• śaka – Śaka (name of a people, Scythians)
  proper noun (masculine)

खशैः (khaśaiḥ) - by the Khaśas (name of a people)

(proper noun)

Instrumental, masculine, plural of khaśa

khaśa - Khaśa (name of a mountain tribe)

च (ca) - and, also

(indeclinable)

शाल्वैः (śālvaiḥ) - by the Śālvas (name of a people)

(proper noun)

Instrumental, masculine, plural of śālva

śālva - Śālva (name of a country and its people)

समत्स्यैः (samatsyaiḥ) - by the Matsyas (together with the Matsyas, by the Matsyas)

(noun)

Instrumental, masculine, plural of samatsya

samatsya - with the Matsyas; the Matsyas (name of a country and people)

Compound type : bahuvrihi (sa+matsya)

• sa – with, together with
  indeclinable
• matsya – Matsya (name of a country and its people, lit. 'fish')
  proper noun (masculine)

कुरुमध्यदेशैः (kurumadhyadeśaiḥ) - by warriors from the Kuru-Madhyadeśa region (by those from the Kuru-Madhyadeśa (central region of Kurus))

(noun)

Instrumental, masculine, plural of kurumadhyadeśa

kurumadhyadeśa - the middle country of the Kurus, a region

Compound type : tatpurusha (kuru+madhyadeśa)

• kuru – Kuru (name of an ancient tribe and country)
  proper noun (masculine)
• madhyadeśa – middle country, central region
  noun (masculine)

म्लेच्छैः (mlecchaiḥ) - by the Mlecchas (foreigners, barbarians)

(noun)

Instrumental, masculine, plural of mleccha

mleccha - a foreigner, barbarian, non-Aryan

पुलिन्दैः (pulindaiḥ) - by the Pulindas (name of a wild tribe)

(proper noun)

Instrumental, masculine, plural of pulinda

pulinda - Pulinda (name of a wild tribe)

द्रविडान्ध्रकञ्च्यैः (draviḍāndhrakañcyaiḥ) - by warriors from the Dravida, Andhra, and Kancī regions (by the Dravidas, Andhras, and Kancīs)

(proper noun)

Instrumental, masculine, plural of draviḍāndhrakañcya

draviḍāndhrakañcya - Dravidas, Andhras, and Kancīs (names of peoples/regions)

Compound type : dvandva (draviḍa+āndhra+kañcya)

• draviḍa – Dravida (name of a country and people in Southern India)
  proper noun (masculine)
• āndhra – Andhra (name of a country and people)
  proper noun (masculine)
• kañcya – Kancī (name of a city or its inhabitants)
  proper noun (masculine)