महाभारतः mahābhārataḥ - book-3, chapter-267, verse-16

मुखमासीत्तु सैन्यस्य हनूमान्मारुतात्मजः ।
जघनं पालयामास सौमित्रिरकुतोभयः ॥१६॥

16. mukhamāsīttu sainyasya hanūmānmārutātmajaḥ ,
jaghanaṁ pālayāmāsa saumitrirakutobhayaḥ.

16. mukham āsīt tu sainyasya hanūmān mārutātmajaḥ
jaghanam pālayāmāsa saumitriḥ akutobhayaḥ

16. Indeed, Hanūmān, the son of the wind-god (mārutātmaja), was at the front of the army, while Saumitri (Lakṣmaṇa), who was fearless, protected the rear.

Words meanings summery:

• मुखम् (mukham) - the front, the face

• आसीत् (āsīt) - was

• तु (tu) - but, indeed, however

• सैन्यस्य (sainyasya) - of the army

• हनूमान् (hanūmān) - Hanūmān

• मारुतात्मजः (mārutātmajaḥ) - son of Maruta, son of the wind-god

• जघनम् (jaghanam) - the rear, the hind part

• पालयामास (pālayāmāsa) - he protected

• सौमित्रिः (saumitriḥ) - Saumitri (Lakṣmaṇa)

• अकुतोभयः (akutobhayaḥ) - fearless, having no fear from anywhere

Words meanings and morphology

मुखम् (mukham) - the front, the face

(noun)

Nominative, neuter, singular of mukha

mukha - face, mouth, front, opening

आसीत् (āsīt) - was

(verb)

3rd person , singular, active, imperfect (laṅ) of as

Imperfect form

Root: as (class 2)

तु (tu) - but, indeed, however

(indeclinable)

सैन्यस्य (sainyasya) - of the army

(noun)

Genitive, neuter, singular of sainya

sainya - army, host

हनूमान् (hanūmān) - Hanūmān

(proper noun)

Nominative, masculine, singular of hanūmat

hanūmat - Hanūmān (name of a monkey chief, son of Vāyu)

मारुतात्मजः (mārutātmajaḥ) - son of Maruta, son of the wind-god

(proper noun)

Nominative, masculine, singular of mārutātmaja

mārutātmaja - son of Maruta, son of the wind-god

Compound type : Tatpuruṣa (māruta+ātmaja)

• māruta – relating to Marut, wind-god
  noun (masculine)
• ātmaja – self-born, son, daughter
  noun (masculine)

जघनम् (jaghanam) - the rear, the hind part

(noun)

Accusative, neuter, singular of jaghana

jaghana - hip, buttock, rear, hind part

पालयामास (pālayāmāsa) - he protected

(verb)

3rd person , singular, active, perfect (lit) of pālayāmāsa

Periphrastic Perfect form

from causative of √pāl (or from √pṛ, 2nd class) with perfect of as

Root: pāl (class 10)

सौमित्रिः (saumitriḥ) - Saumitri (Lakṣmaṇa)

(proper noun)

Nominative, masculine, singular of saumitri

saumitri - son of Sumitrā, Lakṣmaṇa

अकुतोभयः (akutobhayaḥ) - fearless, having no fear from anywhere

(adjective)

Nominative, masculine, singular of akutobhaya

akutobhaya - fearless, having no fear from any quarter

Compound type : Bahuvrīhi (akutaḥ+bhaya)

• akutaḥ – from nowhere, from no quarter
  indeclinable
• bhaya – fear, alarm, danger
  noun (neuter)