महाभारतः mahābhārataḥ - book-1, chapter-45, verse-9

ब्राह्मणाः क्षत्रिया वैश्याः शूद्राश्चैव स्वकर्मसु ।
स्थिताः सुमनसो राजंस्तेन राज्ञा स्वनुष्ठिताः ॥९॥

9. brāhmaṇāḥ kṣatriyā vaiśyāḥ śūdrāścaiva svakarmasu ,
sthitāḥ sumanaso rājaṁstena rājñā svanuṣṭhitāḥ.

9. brāhmaṇāḥ kṣatriyāḥ vaiśyāḥ śūdrāḥ ca eva svakarmasu
sthitāḥ sumanasaḥ rājan tena rājñā svanuṣṭhitāḥ

9. O King, by that ruler, the Brahmins, Kshatriyas, Vaishyas, and Shudras were all well-regulated; they remained established in their respective duties and were benevolent-minded.

Words meanings summery:

• ब्राह्मणाः (brāhmaṇāḥ) - Brahmins

• क्षत्रियाः (kṣatriyāḥ) - Kshatriyas

• वैश्याः (vaiśyāḥ) - Vaishyas

• शूद्राः (śūdrāḥ) - Shudras

• च (ca) - and (and, also)

• एव (eva) - all (indeed, only, just)

• स्वकर्मसु (svakarmasu) - in their respective duties (in their own duties/actions)

• स्थिताः (sthitāḥ) - established (stood, situated, established)

• सुमनसः (sumanasaḥ) - benevolent-minded (good-minded, benevolent, happy)

• राजन् (rājan) - O King!

• तेन (tena) - by that (by that (masculine/neuter singular))

• राज्ञा (rājñā) - by that ruler (by the king)

• स्वनुष्ठिताः (svanuṣṭhitāḥ) - well-regulated (well-regulated, well-performed, well-done)

Words meanings and morphology

ब्राह्मणाः (brāhmaṇāḥ) - Brahmins

(noun)

Nominative, masculine, plural of brāhmaṇa

brāhmaṇa - Brahmin, member of the priestly class

derived from brahman

क्षत्रियाः (kṣatriyāḥ) - Kshatriyas

(noun)

Nominative, masculine, plural of kṣatriya

kṣatriya - Kshatriya, member of the warrior/ruler class

वैश्याः (vaiśyāḥ) - Vaishyas

(noun)

Nominative, masculine, plural of vaiśya

vaiśya - Vaishya, member of the merchant/farmer class

शूद्राः (śūdrāḥ) - Shudras

(noun)

Nominative, masculine, plural of śūdra

śūdra - Shudra, member of the laborer class

च (ca) - and (and, also)

(indeclinable)

एव (eva) - all (indeed, only, just)

(indeclinable)

स्वकर्मसु (svakarmasu) - in their respective duties (in their own duties/actions)

(noun)

Locative, neuter, plural of svakarman

svakarman - one's own duty, one's own action

Compound type : tatpuruṣa (sva+karman)

• sva – own, one's own
  pronoun
• karman – action, deed, duty
  noun (neuter)
  action noun
  from root kṛ
  Root: kṛ (class 8)

स्थिताः (sthitāḥ) - established (stood, situated, established)

(adjective)

Nominative, masculine, plural of sthita

sthita - standing, being, firm, established

past passive participle

from root sthā

Root: sthā (class 1)

Note: Agrees with brāhmaṇāḥ etc.

सुमनसः (sumanasaḥ) - benevolent-minded (good-minded, benevolent, happy)

(adjective)

Nominative, masculine, plural of sumanas

sumanas - good-minded, benevolent, joyous, flower (as noun)

Compound type : bahuvrīhi (su+manas)

• su – good, well, excellent
  indeclinable
• manas – mind, intellect, thought
  noun (neuter)
  Root: man (class 4)

Note: Agrees with brāhmaṇāḥ etc.

राजन् (rājan) - O King!

(noun)

Vocative, masculine, singular of rājan

rājan - king, ruler

तेन (tena) - by that (by that (masculine/neuter singular))

(pronoun)

Instrumental, masculine, singular of tad

tad - that, he, she, it

Note: Agrees with rājñā

राज्ञा (rājñā) - by that ruler (by the king)

(noun)

Instrumental, masculine, singular of rājan

rājan - king, ruler

स्वनुष्ठिताः (svanuṣṭhitāḥ) - well-regulated (well-regulated, well-performed, well-done)

(adjective)

Nominative, masculine, plural of svanuṣṭhita

svanuṣṭhita - well-performed, well-regulated, properly executed

past passive participle

compound of su (well) + anu (after/towards) + sthita (stood/done) from root sthā

Compound type : tatpuruṣa (su+anuṣṭhita)

• su – good, well, excellent
  indeclinable
• anuṣṭhita – performed, executed, regulated
  adjective (masculine)
  past passive participle
  from root sthā with prefix anu
  Prefix: anu
  Root: sthā (class 1)

Note: Agrees with brāhmaṇāḥ etc.