महाभारतः mahābhārataḥ - book-3, chapter-204, verse-25

धर्ममेव गुरुं ज्ञात्वा करोमि द्विजसत्तम ।
अतन्द्रितः सदा विप्र शुश्रूषां वै करोम्यहम् ॥२५॥

25. dharmameva guruṁ jñātvā karomi dvijasattama ,
atandritaḥ sadā vipra śuśrūṣāṁ vai karomyaham.

25. dharmam eva gurum jñātvā karomi dvijasattama
atandritaḥ sadā vipra śuśrūṣām vai karomi aham

25. O best among the twice-born (dvija), understanding natural law (dharma) alone as my guide, I act. Always diligently, O brahmin (vipra), I unfailingly perform service.

Words meanings summery:

• धर्मम् (dharmam) - natural law (dharma) (natural law, constitution, duty, righteousness)

• एव (eva) - only, just, indeed, alone

• गुरुम् (gurum) - teacher, guide (teacher, spiritual master)

• ज्ञात्वा (jñātvā) - having known, having understood

• करोमि (karomi) - I act (I do, I make)

• द्विजसत्तम (dvijasattama) - O best among Brahmins (O best among the twice-born)

• अतन्द्रितः (atandritaḥ) - always diligently (diligent, vigilant, not lazy)

• सदा (sadā) - always, ever

• विप्र (vipra) - O brahmin, inspired, wise

• शुश्रूषाम् (śuśrūṣām) - service, desire to hear, obedience

• वै (vai) - indeed, certainly, verily

• करोमि (karomi) - I perform (I do, I make)

• अहम् (aham) - I

Words meanings and morphology

धर्मम् (dharmam) - natural law (dharma) (natural law, constitution, duty, righteousness)

(noun)

Accusative, masculine, singular of dharma

dharma - natural law, constitution, intrinsic nature, duty, righteousness

Note: Accusative singular masculine of 'dharma'.

एव (eva) - only, just, indeed, alone

(indeclinable)

गुरुम् (gurum) - teacher, guide (teacher, spiritual master)

(noun)

Accusative, masculine, singular of guru

guru - teacher, spiritual master, weighty, important

Note: Accusative singular masculine of 'guru'.

ज्ञात्वा (jñātvā) - having known, having understood

(indeclinable)

absolutive

Formed from root jñā

Root: jñā (class 9)

Note: Indeclinable absolutive (gerund) from root 'jñā' (to know).

करोमि (karomi) - I act (I do, I make)

(verb)

1st person , singular, active, present (laṭ) of kṛ

Root: kṛ (class 8)

Note: 1st person singular present active of 'kṛ'.

द्विजसत्तम (dvijasattama) - O best among Brahmins (O best among the twice-born)

(noun)

Vocative, masculine, singular of dvijasattama

dvijasattama - best among the twice-born

Compound type : tatpuruṣa (dvija+sattama)

• dvija – twice-born, a brahmin, a bird, a snake
  noun (masculine)
• sattama – best, most excellent
  adjective (masculine)
  Superlative form of 'sat' (good, existing)

Note: Vocative singular masculine of 'dvijasattama', a tatpuruṣa compound.

अतन्द्रितः (atandritaḥ) - always diligently (diligent, vigilant, not lazy)

(adjective)

Nominative, masculine, singular of atandrita

atandrita - diligent, vigilant, not lazy

Compound type : tatpuruṣa (a+tandrita)

• a – not, non-
  indeclinable
• tandrita – lazy, drowsy
  adjective (masculine)
  past passive participle
  Derived from root 'tandri' (to be tired)
  Root: tandri (class 1)

Note: Nominative singular masculine of 'atandrita', agreeing with the implied subject 'I' (aham).

सदा (sadā) - always, ever

(indeclinable)

विप्र (vipra) - O brahmin, inspired, wise

(noun)

Vocative, masculine, singular of vipra

vipra - brahmin, inspired, wise

Note: Vocative singular masculine of 'vipra'.

शुश्रूषाम् (śuśrūṣām) - service, desire to hear, obedience

(noun)

Accusative, feminine, singular of śuśrūṣā

śuśrūṣā - service, desire to hear, obedience

Note: Accusative singular feminine of 'śuśrūṣā'.

वै (vai) - indeed, certainly, verily

(indeclinable)

करोमि (karomi) - I perform (I do, I make)

(verb)

1st person , singular, active, present (laṭ) of kṛ

Root: kṛ (class 8)

Note: 1st person singular present active of 'kṛ'.

अहम् (aham) - I

(pronoun)

Nominative, singular of asmad

asmad - I

Note: Nominative singular of 'asmad'.