वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-4, chapter-3, verse-21

भिक्षुरूपप्रतिच्छन्नं सुग्रीवप्रियकाम्यया ।
ऋश्यमूकादिह प्राप्तं कामगं कामरूपिणम् ॥२१॥

21. bhikṣurūpapraticchannaṃ sugrīvapriyakāmyayā ,
ṛśyamūkādiha prāptaṃ kāmagaṃ kāmarūpiṇam.

21. bhikṣurūpapratichannam sugrīvapriyakāmyayā
ṛśyamūkāt iha prāptam kāmagam kāmarūpiṇam

21. ṛśyamūkāt iha sugrīvapriyakāmyayā
bhikṣurūpapratichannam kāmagam kāmarūpiṇam prāptam

21. (He) arrived here from R̥śyamūka mountain, disguised in the form of a mendicant, capable of moving and assuming any form at will, all out of the desire to please Sugrīva.

Words meanings summery:

• भिक्षुरूपप्रतिछन्नम् (bhikṣurūpapratichannam) - disguised as a mendicant (referring to Hanumān) (disguised in the form of a mendicant)

• सुग्रीवप्रियकाम्यया (sugrīvapriyakāmyayā) - out of the desire to please Sugrīva, for Sugrīva's sake

• ऋश्यमूकात् (ṛśyamūkāt) - from R̥śyamūka (mountain)

• इह (iha) - here, in this place

• प्राप्तम् (prāptam) - arrived (referring to Hanumān) (arrived, reached, obtained)

• कामगम् (kāmagam) - able to move at will (referring to Hanumān) (moving at will, going wherever one wishes)

• कामरूपिणम् (kāmarūpiṇam) - able to assume any form at will (referring to Hanumān) (assuming any form at will, shape-shifting)

Words meanings and morphology

भिक्षुरूपप्रतिछन्नम् (bhikṣurūpapratichannam) - disguised as a mendicant (referring to Hanumān) (disguised in the form of a mendicant)

(adjective)

Accusative, masculine, singular of bhikṣurūpapratichanna

bhikṣurūpapratichanna - disguised in the form of a mendicant

A bahuvrīhi compound, meaning 'one whose form is disguised as a mendicant'. The last part 'pratichanna' is a PPP from √chad.

Compound type : bahuvrīhi (bhikṣu+rūpa+pratichanna)

• bhikṣu – mendicant, beggar
  noun (masculine)
• rūpa – form, shape, appearance
  noun (neuter)
• pratichanna – covered, concealed, disguised
  adjective (masculine)
  Past Passive Participle
  Derived from the root √chad (to cover) with the prefix prati.
  Prefix: prati
  Root: √chad (class 1)

सुग्रीवप्रियकाम्यया (sugrīvapriyakāmyayā) - out of the desire to please Sugrīva, for Sugrīva's sake

(noun)

Instrumental, feminine, singular of sugrīvapriyakāmya

sugrīvapriyakāmya - desire for Sugrīva's welfare/pleasure

A tatpuruṣa compound of 'Sugrīva-priya' (dear to Sugrīva or Sugrīva's dear one) and 'kāmya' (desire).

Compound type : tatpuruṣa (sugrīva+priya+kāmya)

• sugrīva – Sugrīva (name of the monkey king)
  proper noun (masculine)
• priya – dear, beloved, pleasing
  adjective (masculine)
• kāmya – desire, wish, longing
  noun (feminine)
  From √kam (to desire) with the suffix -ya.
  Root: √kam (class 1)

ऋश्यमूकात् (ṛśyamūkāt) - from R̥śyamūka (mountain)

(proper noun)

Ablative, masculine, singular of ṛśyamūka

ṛśyamūka - R̥śyamūka (name of a mountain)

इह (iha) - here, in this place

(indeclinable)

प्राप्तम् (prāptam) - arrived (referring to Hanumān) (arrived, reached, obtained)

(adjective)

Accusative, masculine, singular of prāpta

prāpta - arrived, obtained, reached

Past Passive Participle

Derived from the root √āp (to obtain, reach) with the prefix pra.

Prefix: pra

Root: √āp (class 5)

कामगम् (kāmagam) - able to move at will (referring to Hanumān) (moving at will, going wherever one wishes)

(adjective)

Accusative, masculine, singular of kāmaga

kāmaga - moving at will

Upapada tatpuruṣa compound meaning 'one who goes according to will'.

Compound type : upapada tatpuruṣa (kāma+ga)

• kāma – will, desire
  noun (masculine)
• ga – going, moving
  adjective (masculine)
  Agent noun/suffix
  Derived from the root √gam (to go).
  Root: √gam (class 1)

कामरूपिणम् (kāmarūpiṇam) - able to assume any form at will (referring to Hanumān) (assuming any form at will, shape-shifting)

(adjective)

Accusative, masculine, singular of kāmarūpin

kāmarūpin - assuming any form at will

Bahuvrīhi compound meaning 'one who has the form according to his will'. The suffix -in denotes possession.

Compound type : bahuvrīhi (kāma+rūpa)

• kāma – will, desire
  noun (masculine)
• rūpa – form, shape, appearance
  noun (neuter)