महाभारतः mahābhārataḥ - book-12, chapter-258, verse-31

शिशोः शुश्रूषणाच्छुश्रूर्माता देहमनन्तरम् ।
चेतनावान्नरो हन्याद्यस्य नासुषिरं शिरः ॥३१॥

31. śiśoḥ śuśrūṣaṇācchuśrūrmātā dehamanantaram ,
cetanāvānnaro hanyādyasya nāsuṣiraṁ śiraḥ.

31. śiśoḥ śuśrūṣaṇāt śuśrūḥ mātā deham anantaram |
cetanāvān naraḥ hanyāt yasya na asuṣiram śiraḥ

31. mātā śiśoḥ śuśrūṣaṇāt śuśrūḥ deham anantaram
cetanāvān naraḥ yasya śiraḥ na asuṣiram hanyāt

31. A mother is known as 'Śuśrū' (attendant/nurse) for serving her child, and she is the ultimate sustainer of the body. A conscious person should disregard anyone whose head is not hollow (implying it is solid and unreceptive to knowledge).

Words meanings summery:

• शिशोः (śiśoḥ) - of the child, from the child

• शुश्रूषणात् (śuśrūṣaṇāt) - from serving, by nursing, due to attendance

• शुश्रूः (śuśrūḥ) - nurse, attendant, one who serves

• माता (mātā) - mother

• देहम् (deham) - sustainer of the body, body itself (body)

• अनन्तरम् (anantaram) - immediately after, next, subsequently

• चेतनावान् (cetanāvān) - conscious, intelligent, possessed of awareness

• नरः (naraḥ) - man, person

• हन्यात् (hanyāt) - should disregard or eliminate from consideration (metaphorical) (should kill, should strike, should destroy, should disregard/eliminate)

• यस्य (yasya) - whose, of whom

• न (na) - not, no

• असुषिरम् (asuṣiram) - implying a head that is solid/dense and unreceptive to knowledge or ideas (not hollow, solid, dense (metaphorically, stupid, unreceptive))

• शिरः (śiraḥ) - head

Words meanings and morphology

शिशोः (śiśoḥ) - of the child, from the child

(noun)

Genitive, masculine, singular of śiśu

śiśu - child, infant

शुश्रूषणात् (śuśrūṣaṇāt) - from serving, by nursing, due to attendance

(noun)

Ablative, neuter, singular of śuśrūṣaṇa

śuśrūṣaṇa - serving, nursing, obeying, attending

action noun

Derived from the desiderative stem of root śru (to hear), implying desire to hear or serve.

Root: śru (class 5)

शुश्रूः (śuśrūḥ) - nurse, attendant, one who serves

(noun)

Nominative, feminine, singular of śuśrū

śuśrū - nurse, attendant, one who serves or obeys

From desiderative of root śru, meaning one who desires to hear or serve.

Root: śru (class 5)

माता (mātā) - mother

(noun)

Nominative, feminine, singular of mātṛ

mātṛ - mother

देहम् (deham) - sustainer of the body, body itself (body)

(noun)

Accusative, masculine, singular of deha

deha - body, physical frame

Root: dih (class 4)

Note: Used here in a predicative sense, or as the object of sustenance.

अनन्तरम् (anantaram) - immediately after, next, subsequently

(indeclinable)

Compound type : nañ-tatpuruṣa (na+antara)

• na – not, no
  indeclinable
• antara – interval, space, interior
  noun (neuter)

चेतनावान् (cetanāvān) - conscious, intelligent, possessed of awareness

(adjective)

Nominative, masculine, singular of cetanāvat

cetanāvat - possessed of consciousness or intelligence, alive, knowing

Derived from 'cetanā' (consciousness) with the possessive suffix '-vat' (from matup pratyaya).

नरः (naraḥ) - man, person

(noun)

Nominative, masculine, singular of nara

nara - man, person, male, hero

हन्यात् (hanyāt) - should disregard or eliminate from consideration (metaphorical) (should kill, should strike, should destroy, should disregard/eliminate)

(verb)

3rd person , singular, active, optative (vidhi-liṅ) of han

Root: han (class 2)

यस्य (yasya) - whose, of whom

(pronoun)

Genitive, masculine, singular of yad

yad - which, who, what

न (na) - not, no

(indeclinable)

असुषिरम् (asuṣiram) - implying a head that is solid/dense and unreceptive to knowledge or ideas (not hollow, solid, dense (metaphorically, stupid, unreceptive))

(adjective)

Nominative, neuter, singular of asuṣira

asuṣira - not hollow, solid, dense, not having a hole

Compound type : nañ-tatpuruṣa (na+suṣira)

• na – not, no
  indeclinable
• suṣira – hollow, perforated, porous
  adjective (neuter)

शिरः (śiraḥ) - head

(noun)

Nominative, neuter, singular of śiras

śiras - head, top, peak