महाभारतः mahābhārataḥ - book-12, chapter-21, verse-13

यो हि राज्ये स्थितः शश्वद्वशी तुल्यप्रियाप्रियः ।
क्षत्रियो यज्ञशिष्टाशी राजशास्त्रार्थतत्त्ववित् ॥१३॥

13. yo hi rājye sthitaḥ śaśvadvaśī tulyapriyāpriyaḥ ,
kṣatriyo yajñaśiṣṭāśī rājaśāstrārthatattvavit.

13. yaḥ hi rājye sthitaḥ śaśvat vaśī tulyapriyāpriyaḥ
| kṣatriyaḥ yajñaśiṣṭāśī rājaśāstrārthatattvavit

13. yaḥ kṣatriyaḥ hi śaśvat rājye sthitaḥ,
vaśī,
tulyapriyāpriyaḥ,
yajñaśiṣṭāśī,
(ca) rājaśāstrārthatattvavit (sa uttamaḥ bhavati)

13. Indeed, a kṣatriya who is always established in kingship, self-controlled, equipoised regarding likes and dislikes, who partakes of the remnants of Vedic rituals (yajña), and who understands the true essence of the science of polity (rājaśāstra) — such a one is excellent.

Words meanings summery:

• यः (yaḥ) - who

• हि (hi) - indeed, for, certainly (particle)

• राज्ये (rājye) - in the kingdom, in sovereignty, in ruling

• स्थितः (sthitaḥ) - situated, standing, abiding, established

• शश्वत् (śaśvat) - always, perpetually, constantly

• वशी (vaśī) - self-controlled, master of senses, having power

• तुल्यप्रियाप्रियः (tulyapriyāpriyaḥ) - to whom liked and disliked are equal, balanced in likes and dislikes

• क्षत्रियः (kṣatriyaḥ) - a kṣatriya, a warrior, a member of the warrior class

• यज्ञशिष्टाशी (yajñaśiṣṭāśī) - one who eats the remnants of Vedic rituals

• राजशास्त्रार्थतत्त्ववित् (rājaśāstrārthatattvavit) - knower of the true meaning of the science of polity

Words meanings and morphology

यः (yaḥ) - who

(pronoun)

Nominative, masculine, singular of yad

yad - who, which, what

हि (hi) - indeed, for, certainly (particle)

(indeclinable)

राज्ये (rājye) - in the kingdom, in sovereignty, in ruling

(noun)

Locative, neuter, singular of rājya

rājya - kingdom, realm, sovereignty, government

Derived from rājan 'king'

स्थितः (sthitaḥ) - situated, standing, abiding, established

(adjective)

Nominative, masculine, singular of sthita

sthita - stood, standing, situated, established, firm

Past Passive Participle

From root sthā- 'to stand'

Root: sthā (class 1)

Note: Functions as a descriptor of the kṣatriya.

शश्वत् (śaśvat) - always, perpetually, constantly

(indeclinable)

Note: Modifies 'sthitaḥ'.

वशी (vaśī) - self-controlled, master of senses, having power

(adjective)

Nominative, masculine, singular of vaśin

vaśin - self-controlled, master of senses, having power or control

From vaśa 'will, control' with suffix -in

Note: Agrees with the implicit kṣatriya.

तुल्यप्रियाप्रियः (tulyapriyāpriyaḥ) - to whom liked and disliked are equal, balanced in likes and dislikes

(adjective)

Nominative, masculine, singular of tulyapriyāpriya

tulyapriyāpriya - having likes and dislikes equally; indifferent to pleasure and pain

Compound type : bahuvrīhi (tulya+priya+apriya)

• tulya – equal, similar
  adjective
• priya – dear, beloved, liked thing
  noun (neuter)
  From root prī- 'to please'
  Root: prī (class 9)
• apriya – undear, disliked, unpleasant thing
  noun (neuter)
  Negative of priya
  Prefix: a

Note: Agrees with the implicit kṣatriya.

क्षत्रियः (kṣatriyaḥ) - a kṣatriya, a warrior, a member of the warrior class

(noun)

Nominative, masculine, singular of kṣatriya

kṣatriya - member of the warrior or ruling class, a warrior, a king

Derived from kṣatra 'dominion, power'

Note: The main subject of the description.

यज्ञशिष्टाशी (yajñaśiṣṭāśī) - one who eats the remnants of Vedic rituals

(adjective)

Nominative, masculine, singular of yajñaśiṣṭāśin

yajñaśiṣṭāśin - one who eats the remnants of Vedic rituals

Agent noun from yajñaśiṣṭa 'remnants of yajña' and root aś- 'to eat'.

Compound type : tatpuruṣa (yajñaśiṣṭa+āśin)

• yajñaśiṣṭa – remnant of a Vedic ritual
  noun (neuter)
  Tatpuruṣa compound of yajña 'Vedic ritual' and śiṣṭa 'remnant'.
• āśin – eating, eater (agent noun suffix)
  noun
  From root aś- 'to eat'
  Prefix: ā
  Root: aś (class 9)

Note: Agrees with kṣatriyaḥ.

राजशास्त्रार्थतत्त्ववित् (rājaśāstrārthatattvavit) - knower of the true meaning of the science of polity

(adjective)

Nominative, masculine, singular of rājaśāstrārthatattvavit

rājaśāstrārthatattvavit - one who knows the true meaning of the principles of royal science/polity

Agent noun from rājaśāstrārthatattva 'true meaning of royal science' and root vid- 'to know'.

Compound type : tatpuruṣa (rājaśāstrārthatattva+vit)

• rājaśāstrārthatattva – the true essence of the meaning of the science of polity
  noun (neuter)
  Tatpuruṣa compound: rāja-śāstra (science of kingship) + artha (meaning) + tattva (essence).
• vit – knowing, knower (agent noun suffix)
  noun
  From root vid- 'to know'
  Root: vid (class 2)

Note: Agrees with kṣatriyaḥ.