वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-7, chapter-10, verse-17

सुपर्णनागयक्षाणां दैत्यदानवरक्षसाम् ।
अवध्यः स्यां प्रजाध्यक्ष देवतानां च शाश्वतम् ॥१७॥

17. suparṇanāgayakṣāṇāṃ daityadānavarakṣasām ,
avadhyaḥ syāṃ prajādhyakṣa devatānāṃ ca śāśvatam.

17. suparṇanāgayakṣāṇām daityadānavarakṣasām
avadhyaḥ syām prajādhyakṣa devatānām ca śāśvatam

17. prajādhyakṣa suparṇanāgayakṣāṇām daityadānavarakṣasām
devatānām ca śāśvatam avadhyaḥ syām

17. O Chief of creation, may I be forever invincible to Suparṇas, Nāgas, Yakṣas, Daityas, Dānavas, Rakṣasas, and the gods.

Words meanings summery:

• सुपर्णनागयक्षाणाम् (suparṇanāgayakṣāṇām) - of Suparṇas, Nāgas, and Yakṣas

• दैत्यदानवरक्षसाम् (daityadānavarakṣasām) - of Daityas, Dānavas, and Rakṣasas

• अवध्यः (avadhyaḥ) - invulnerable, not to be killed

• स्याम् (syām) - may I be

• प्रजाध्यक्ष (prajādhyakṣa) - Addressed to Brahmā. (O Lord of creatures, O Chief of creation)

• देवतानाम् (devatānām) - of the gods

• च (ca) - and

• शाश्वतम् (śāśvatam) - eternally, forever

Words meanings and morphology

सुपर्णनागयक्षाणाम् (suparṇanāgayakṣāṇām) - of Suparṇas, Nāgas, and Yakṣas

(noun)

Genitive, masculine, plural of suparṇanāgayakṣa

suparṇanāgayakṣa - Suparṇas (a class of celestial beings, often associated with Garudas), Nāgas (serpent deities), and Yakṣas (nature spirits, guardians of wealth)

Compound type : dvandva (suparṇa+nāga+yakṣa)

• suparṇa – well-winged; a mythical bird, a Garuda
  noun (masculine)
  Prefix: su
  Root: pṛ
• nāga – serpent, snake; a Nāga (mythical semi-divine being)
  noun (masculine)
• yakṣa – a class of semi-divine beings, guardians of wealth
  noun (masculine)
  Root: yaj (class 1)

दैत्यदानवरक्षसाम् (daityadānavarakṣasām) - of Daityas, Dānavas, and Rakṣasas

(noun)

Genitive, masculine, plural of daityadānavarakṣas

daityadānavarakṣas - Daityas (sons of Diti), Dānavas (sons of Danu), and Rakṣasas (demons)

Compound type : dvandva (daitya+dānava+rakṣas)

• daitya – descendant of Diti; a class of demons
  noun (masculine)
  derived from Diti (mother of Daityas)
• dānava – descendant of Danu; a class of demons
  noun (masculine)
  derived from Danu (mother of Dānavas)
• rakṣas – a demon, an evil spirit
  noun (masculine)
  Root: rakṣ (class 1)

अवध्यः (avadhyaḥ) - invulnerable, not to be killed

(adjective)

Nominative, masculine, singular of avadhya

avadhya - not to be killed, invulnerable, indestructible

gerundive

formed with suffix -ya from root han (to strike, kill), with negative prefix a-

Prefix: a

Root: han (class 2)

स्याम् (syām) - may I be

(verb)

1st person , singular, active, optative (vidhiliṅ) of as

Optative Mood

1st person singular, Parasmaipada

Root: as (class 2)

प्रजाध्यक्ष (prajādhyakṣa) - Addressed to Brahmā. (O Lord of creatures, O Chief of creation)

(noun)

Vocative, masculine, singular of prajādhyakṣa

prajādhyakṣa - supervisor of creation, lord of beings, chief of creatures

Compound type : tatpuruṣa (prajā+adhyakṣa)

• prajā – progeny, offspring, creatures, subjects
  noun (feminine)
  Prefix: pra
  Root: jan (class 4)
• adhyakṣa – overseer, superintendent, chief, lord
  noun (masculine)
  from adhi-akṣa (eye/perceive over)
  Prefix: adhi
  Root: ikṣ (class 1)

देवतानाम् (devatānām) - of the gods

(noun)

Genitive, feminine, plural of devatā

devatā - deity, divinity, god

from deva (god) + tā (abstract suffix)

च (ca) - and

(indeclinable)

शाश्वतम् (śāśvatam) - eternally, forever

(indeclinable)