महाभारतः mahābhārataḥ - book-3, chapter-188, verse-18

ब्राह्मणाः क्षत्रिया वैश्याः संकीर्यन्तः परस्परम् ।
शूद्रतुल्या भविष्यन्ति तपःसत्यविवर्जिताः ॥१८॥

18. brāhmaṇāḥ kṣatriyā vaiśyāḥ saṁkīryantaḥ parasparam ,
śūdratulyā bhaviṣyanti tapaḥsatyavivarjitāḥ.

18. brāhmaṇāḥ kṣatriyāḥ vaiśyāḥ saṃkīryantaḥ parasparam
śūdra-tulyāḥ bhaviṣyanti tapaḥ-satya-vivarjitāḥ

18. Brahmins, Kshatriyas, and Vaishyas will mix with each other and become like Shudras, devoid of austerity (tapas) and truth.

Words meanings summery:

• ब्राह्मणाः (brāhmaṇāḥ) - Brahmins

• क्षत्रियाः (kṣatriyāḥ) - Kshatriyas

• वैश्याः (vaiśyāḥ) - Vaishyas

• संकीर्यन्तः (saṁkīryantaḥ) - mixing, becoming impure, being mingled

• परस्परम् (parasparam) - mutually, with each other, one another

• शूद्रतुल्याः (śūdratulyāḥ) - equal to Shudras, like Shudras

• भविष्यन्ति (bhaviṣyanti) - they will be, they will become

• तपःसत्यविवर्जिताः (tapaḥsatyavivarjitāḥ) - devoid of austerity (tapas) and truth

Words meanings and morphology

ब्राह्मणाः (brāhmaṇāḥ) - Brahmins

(noun)

Nominative, masculine, plural of brāhmaṇa

brāhmaṇa - Brahmin, relating to brahman, member of the priestly class

From 'brahman'.

क्षत्रियाः (kṣatriyāḥ) - Kshatriyas

(noun)

Nominative, masculine, plural of kṣatriya

kṣatriya - Kshatriya, warrior, ruler, belonging to the military class

From 'kṣatra' (rule, power).

वैश्याः (vaiśyāḥ) - Vaishyas

(noun)

Nominative, masculine, plural of vaiśya

vaiśya - Vaishya, merchant, agriculturist, belonging to the trading class

From 'viś' (people, settlement).

संकीर्यन्तः (saṁkīryantaḥ) - mixing, becoming impure, being mingled

(participle)

Nominative, masculine, plural of saṃkīryamāṇa

saṁkīryamāṇa - mixing, being mixed, becoming impure, being scattered

Present Participle (Middle/Passive)

From root 'kṛ' (to scatter, mix) with prefix 'sam'. The 'ya' infix indicates passive voice.

Prefix: sam

Root: kṛ (class 6)

परस्परम् (parasparam) - mutually, with each other, one another

(indeclinable)

Note: Adverbial usage.

शूद्रतुल्याः (śūdratulyāḥ) - equal to Shudras, like Shudras

(adjective)

Nominative, masculine, plural of śūdratulya

śūdratulya - resembling a Shudra, equal to a Shudra

Compound of 'śūdra' and 'tulya'.

Compound type : tatpurusha (śūdra+tulya)

• śūdra – Shudra, member of the lowest social class
  noun (masculine)
• tulya – equal, similar, comparable, like
  adjective
  Gerundive (kṛtya)
  From root 'tul' (to weigh, compare).
  Root: tul (class 10)

भविष्यन्ति (bhaviṣyanti) - they will be, they will become

(verb)

3rd person , plural, active, future (lṛṭ) of bhū

Future tense, 3rd person plural.

Root: bhū (class 1)

तपःसत्यविवर्जिताः (tapaḥsatyavivarjitāḥ) - devoid of austerity (tapas) and truth

(adjective)

Nominative, masculine, plural of tapaḥsatyavivarjita

tapaḥsatyavivarjita - devoid of penance (tapas) and truth

Compound of 'tapas' (austerity), 'satya' (truth), and 'vivarjita' (deprived, Past Passive Participle of 'vi-vṛj').

Compound type : dvandva-tatpurusha (tapas+satya+vivarjita)

• tapas – austerity, penance, heat, spiritual fervor
  noun (neuter)
  From root 'tap' (to heat, suffer penance).
  Root: tap (class 1)
• satya – truth, true, reality, sincerity
  noun (neuter)
  From 'sat' (being, existing).
  Root: as (class 2)
• vivarjita – abandoned, deprived of, excluded, destitute of
  adjective (masculine)
  Past Passive Participle
  From root 'vṛj' (to avoid, abandon) with prefix 'vi'.
  Prefix: vi
  Root: vṛj (class 10)