महाभारतः mahābhārataḥ - book-13, chapter-74, verse-6

पितृशुश्रूषणे किं च मातृशुश्रूषणे तथा ।
आचार्यगुरुशुश्रूषास्वनुक्रोशानुकम्पने ॥६॥

6. pitṛśuśrūṣaṇe kiṁ ca mātṛśuśrūṣaṇe tathā ,
ācāryaguruśuśrūṣāsvanukrośānukampane.

6. pitṛśuśrūṣaṇe kim ca mātṛśuśrūṣaṇe tathā
ācāryaguruśuśrūṣāsu anukrośānukampane

6. And what is the fruit in serving one's father, and similarly, in serving one's mother? What is the fruit in serving preceptors (ācārya) and spiritual teachers (guru), and in demonstrating compassion and sympathy?

Words meanings summery:

• पितृशुश्रूषणे (pitṛśuśrūṣaṇe) - in serving the father, in devotion to the father

• किम् (kim) - what, which, why

• च (ca) - and, also

• मातृशुश्रूषणे (mātṛśuśrūṣaṇe) - in serving the mother, in devotion to the mother

• तथा (tathā) - likewise, similarly, so also

• आचार्यगुरुशुश्रूषासु (ācāryaguruśuśrūṣāsu) - in serving preceptors and spiritual teachers

• अनुक्रोशानुकम्पने (anukrośānukampane) - in compassion and sympathy

Words meanings and morphology

पितृशुश्रूषणे (pitṛśuśrūṣaṇe) - in serving the father, in devotion to the father

(noun)

Locative, neuter, singular of pitṛśuśrūṣaṇa

pitṛśuśrūṣaṇa - service to father, devotion to father

compound of pitṛ (father) + śuśrūṣaṇa (service)

Compound type : ṣaṣṭhī-tatpuruṣa (pitṛ+śuśrūṣaṇa)

• pitṛ – father
  noun (masculine)
• śuśrūṣaṇa – service, attendance, desire to hear
  noun (neuter)
  from desiderative of √śru (to hear) -> śuśrūṣā (desire to hear/serve)
  Root: śru (class 5)

किम् (kim) - what, which, why

(pronoun)

Nominative, neuter, singular of kim

kim - what, which, why

Note: Can also be accusative singular neuter.

च (ca) - and, also

(indeclinable)

मातृशुश्रूषणे (mātṛśuśrūṣaṇe) - in serving the mother, in devotion to the mother

(noun)

Locative, neuter, singular of mātṛśuśrūṣaṇa

mātṛśuśrūṣaṇa - service to mother, devotion to mother

compound of mātṛ (mother) + śuśrūṣaṇa (service)

Compound type : ṣaṣṭhī-tatpuruṣa (mātṛ+śuśrūṣaṇa)

• mātṛ – mother
  noun (feminine)
• śuśrūṣaṇa – service, attendance, desire to hear
  noun (neuter)
  from desiderative of √śru (to hear)
  Root: śru (class 5)

तथा (tathā) - likewise, similarly, so also

(indeclinable)

आचार्यगुरुशुश्रूषासु (ācāryaguruśuśrūṣāsu) - in serving preceptors and spiritual teachers

(noun)

Locative, feminine, plural of ācāryaguruśuśrūṣā

ācāryaguruśuśrūṣā - service to preceptors and spiritual teachers

dvandva compound of ācārya (preceptor) and guru (teacher), followed by śuśrūṣā (service)

Compound type : dvandva + ṣaṣṭhī-tatpuruṣa (ācārya+guru+śuśrūṣā)

• ācārya – preceptor, teacher, instructor
  noun (masculine)
  from ā-√car (to approach, to practice)
  Prefix: ā
  Root: car (class 1)
• guru – spiritual teacher, revered person, weighty, important
  noun (masculine)
• śuśrūṣā – service, attendance, desire to hear
  noun (feminine)
  from desiderative of √śru (to hear)
  Root: śru (class 5)

Note: This compound implies 'service to both ācāryas and gurus'.

अनुक्रोशानुकम्पने (anukrośānukampane) - in compassion and sympathy

(noun)

Locative, neuter, singular of anukrośānukampana

anukrośānukampana - compassion and sympathy

dvandva compound of anukrośa (compassion) and anukampana (sympathy)

Compound type : dvandva (anukrośa+anukampana)

• anukrośa – compassion, pity, commiseration
  noun (masculine)
  from anu-√kruś (to cry after, to pity)
  Prefix: anu
  Root: kruś (class 1)
• anukampana – sympathy, pity, compassion
  noun (neuter)
  from anu-√kamp (to tremble with, to pity)
  Prefix: anu
  Root: kamp (class 1)

Note: The dvandva compound is treated as neuter singular here in locative.