महाभारतः mahābhārataḥ - book-8, chapter-25, verse-7

कर्ण उवाच ।
ईशानस्य यथा ब्रह्मा यथा पार्थस्य केशवः ।
तथा नित्यं हिते युक्तो मद्रराज भजस्व नः ॥७॥

7. karṇa uvāca ,
īśānasya yathā brahmā yathā pārthasya keśavaḥ ,
tathā nityaṁ hite yukto madrarāja bhajasva naḥ.

7. karṇaḥ uvāca īśānasya yathā brahmā yathā pārthasya
keśavaḥ tathā nityam hite yuktaḥ madrarāja bhajasva naḥ

7. karṇaḥ uvāca: madrarāja,
yathā īśānasya brahmā,
yathā pārthasya keśavaḥ,
tathā nityam hi te yuktaḥ naḥ bhajasva.

7. Karna said: 'Just as Brahma serves Īśāna, and just as Keśava (Krishna) serves Pārtha (Arjuna), so too, O King of Madras, you should always be engaged in our welfare and serve us.'

Words meanings summery:

• कर्णः (karṇaḥ) - Karna

• उवाच (uvāca) - he said, he spoke

• ईशानस्य (īśānasya) - of Īśāna, of Śiva

• यथा (yathā) - as, just as, in which manner

• ब्रह्मा (brahmā) - Brahma (the creator god)

• यथा (yathā) - as, just as, in which manner

• पार्थस्य (pārthasya) - of Partha, of Arjuna

• केशवः (keśavaḥ) - Keśava (Krishna)

• तथा (tathā) - so, thus, in that manner

• नित्यम् (nityam) - always, constantly, eternally

• हिते (hite) - in welfare, in benefit

• युक्तः (yuktaḥ) - engaged, joined, devoted

• मद्राज (madrāja) - Refers to Shalya, the maternal uncle of the Pandavas and Duryodhana's charioteer in the Mahabharata war. (O King of Madras)

• भजस्व (bhajasva) - serve, attend to, worship

• नः (naḥ) - us, our

Words meanings and morphology

कर्णः (karṇaḥ) - Karna

(proper noun)

Nominative, masculine, singular of karṇa

karṇa - Karna (proper name, son of Surya and Kunti)

उवाच (uvāca) - he said, he spoke

(verb)

3rd person , singular, active, past perfect (liṭ) of vac

Third Person Singular Perfect Active

Root `vac`, Class 2, `parasmaipada` conjugation, `liṭ` (perfect tense). Irregular perfect form.

Root: vac (class 2)

ईशानस्य (īśānasya) - of Īśāna, of Śiva

(proper noun)

Genitive, masculine, singular of īśāna

īśāna - ruler, lord, master; a name of Śiva

Root: īś (class 2)

यथा (yathā) - as, just as, in which manner

(indeclinable)

ब्रह्मा (brahmā) - Brahma (the creator god)

(proper noun)

Nominative, masculine, singular of brahmā

brahmā - Brahma, the creator god; a priest

यथा (yathā) - as, just as, in which manner

(indeclinable)

पार्थस्य (pārthasya) - of Partha, of Arjuna

(proper noun)

Genitive, masculine, singular of pārtha

pārtha - son of Pṛthā (Kunti), Arjuna

Derived from `Pṛthā` (Kunti).

केशवः (keśavaḥ) - Keśava (Krishna)

(proper noun)

Nominative, masculine, singular of keśava

keśava - Keśava, a name of Krishna or Vishnu

Meaning 'having long hair' or 'slayer of the demon Keśī'.

तथा (tathā) - so, thus, in that manner

(indeclinable)

नित्यम् (nityam) - always, constantly, eternally

(indeclinable)

Note: Used here as an adverb.

हिते (hite) - in welfare, in benefit

(noun)

Locative, neuter, singular of hita

hita - welfare, benefit, good; beneficial, salutary

Past Passive Participle

Derived from root `dhā` (to place, to put).

Root: dhā (class 3)

युक्तः (yuktaḥ) - engaged, joined, devoted

(adjective)

Nominative, masculine, singular of yukta

yukta - joined, united, yoked, engaged, diligent, appropriate, self-controlled (yoga practitioner)

Past Passive Participle

Derived from root `yuj` (to join, to yoke, to apply) with suffix `kta`.

Root: yuj (class 7)

मद्राज (madrāja) - Refers to Shalya, the maternal uncle of the Pandavas and Duryodhana's charioteer in the Mahabharata war. (O King of Madras)

(proper noun)

Vocative, masculine, singular of madrāja

madrāja - King of the Madras

Compound type : tatpurusha (madra+rājan)

• madra – the country of the Madras, a particular people
  noun (neuter)
• rājan – king, ruler
  noun (masculine)

भजस्व (bhajasva) - serve, attend to, worship

(verb)

2nd person , singular, middle, imperative (loṭ) of bhaj

Second Person Singular Imperative Middle

Root `bhaj`, Class 1, `ātmanepada` conjugation, `loṭ` (imperative mood).

Root: bhaj (class 1)

नः (naḥ) - us, our

(pronoun)

Accusative, plural of asmad

asmad - I, we

Note: Can also be genitive plural.