महाभारतः mahābhārataḥ - book-3, chapter-221, verse-26

अथाब्रवीन्महासेनं महादेवो बृहद्वचः ।
सप्तमं मारुतस्कन्धं रक्ष नित्यमतन्द्रितः ॥२६॥

26. athābravīnmahāsenaṁ mahādevo bṛhadvacaḥ ,
saptamaṁ mārutaskandhaṁ rakṣa nityamatandritaḥ.

26. atha abravīt mahāsenam mahādevaḥ bṛhat vacaḥ
saptamam mārutaskandham rakṣa nityam atandritaḥ

26. Then Mahadeva (mahādevaḥ) spoke significant words to Mahasena (mahāsenam), saying, "Always protect the seventh division of Maruts vigilantly."

Words meanings summery:

• अथ (atha) - then, now, subsequently

• अब्रवीत् (abravīt) - spoke, said

• महासेनम् (mahāsenam) - to Mahasena, to Skanda

• महादेवः (mahādevaḥ) - Mahadeva, the great god (Shiva)

• बृहत् (bṛhat) - significant (great, large, vast, weighty)

• वचः (vacaḥ) - words (word, speech, saying)

• सप्तमम् (saptamam) - the seventh

• मारुतस्कन्धम् (mārutaskandham) - the division/troop of Maruts

• रक्ष (rakṣa) - protect!, guard!

• नित्यम् (nityam) - always, constantly, eternally

• अतन्द्रितः (atandritaḥ) - vigilant, alert, tireless, unwearied

Words meanings and morphology

अथ (atha) - then, now, subsequently

(indeclinable)

अब्रवीत् (abravīt) - spoke, said

(verb)

3rd person , singular, active, past imperfect (laṅ) of brū

Imperfect Active

Root brū, imperfect tense, 3rd person singular

Root: brū (class 2)

महासेनम् (mahāsenam) - to Mahasena, to Skanda

(proper noun)

Accusative, masculine, singular of mahāsena

mahāsena - Mahasena, a name of Kartikeya/Skanda, 'one with a great army'

Compound type : bahuvrīhi (mahā+senā)

• mahā – great, large, exalted
  adjective
• senā – army, host, general
  noun (feminine)

महादेवः (mahādevaḥ) - Mahadeva, the great god (Shiva)

(proper noun)

Nominative, masculine, singular of mahādeva

mahādeva - the great god, a name for Shiva

Compound type : karmadhāraya (mahā+deva)

• mahā – great, exalted
  adjective
• deva – god, deity
  noun (masculine)

बृहत् (bṛhat) - significant (great, large, vast, weighty)

(adjective)

Nominative, neuter, singular of bṛhat

bṛhat - great, large, vast, weighty, important, lofty

Note: Agrees with 'vacaḥ'.

वचः (vacaḥ) - words (word, speech, saying)

(noun)

Nominative, neuter, singular of vacas

vacas - word, speech, voice, saying

From root vac (to speak)

Root: vac (class 2)

सप्तमम् (saptamam) - the seventh

(adjective)

Accusative, masculine, singular of saptama

saptama - seventh

Ordinal number derived from sapta (seven)

Note: Agrees with 'mārutaskandham'.

मारुतस्कन्धम् (mārutaskandham) - the division/troop of Maruts

(noun)

Accusative, masculine, singular of mārutaskandha

mārutaskandha - a division/troop of Maruts (wind deities)

Compound type : ṣaṣṭhī-tatpuruṣa (māruta+skandha)

• māruta – relating to the Maruts; a Marut (wind god)
  noun (masculine)
  Derived from Marut
• skandha – shoulder, trunk, branch, section, division, troop
  noun (masculine)

रक्ष (rakṣa) - protect!, guard!

(verb)

2nd person , singular, active, imperative (loṭ) of rakṣ

Imperative Active

Root rakṣ, 2nd person singular imperative

Root: rakṣ (class 1)

नित्यम् (nityam) - always, constantly, eternally

(indeclinable)

अतन्द्रितः (atandritaḥ) - vigilant, alert, tireless, unwearied

(adjective)

Nominative, masculine, singular of atandrita

atandrita - not lazy, vigilant, alert, tireless, unwearied

Compound (Nañ-tatpuruṣa) with 'a-' (negation) and 'tandrita' (lazy, weary)

Compound type : nañ-tatpuruṣa (a+tandrita)

• a – not, un-
  indeclinable
• tandrita – lazy, weary, indolent, slumbering
  adjective (masculine)
  Past Passive Participle
  From root 'tandr' (to be weary)
  Root: tandr (class 1)

Note: Refers to Mahasena.