वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-2, chapter-104, verse-18

लक्ष्मीश्चन्द्रादपेयाद्वा हिमवान् वा हिमं त्यजेत् ।
अतीयात् सागरो वेलां न प्रतिज्ञामहं पितुः ॥१८॥

18. lakṣmīścandrādapeyādvā himavān vā himaṃ tyajet ,
atīyāt sāgaro velāṃ na pratijñāmahaṃ pituḥ.

18. lakṣmīḥ candrāt apeyāt vā himavān vā himaṃ tyajet
atīyāt sāgaraḥ velāṃ na pratijñām ahaṃ pituḥ

18. Fortune (lakṣmī) might depart from the moon, or the Himalayas might abandon their snow, or the ocean might transgress its boundaries; yet I will not abandon my father's solemn promise.

Words meanings summery:

• लक्ष्मीः (lakṣmīḥ) - fortune, prosperity, goddess Lakshmi

• चन्द्रात् (candrāt) - from the moon

• अपेयात् (apeyāt) - might depart, might go away

• वा (vā) - or, either

• हिमवान् (himavān) - Refers to the Himalayan mountains. (Himalaya, the snowy mountain)

• वा (vā) - or, either

• हिमं (himaṁ) - snow, cold

• त्यजेत् (tyajet) - might abandon, might forsake

• अतीयात् (atīyāt) - might transgress, might go beyond

• सागरः (sāgaraḥ) - the ocean, the sea

• वेलां (velāṁ) - the shore or fixed boundary of the ocean. (shore, boundary, limit, time)

• न (na) - not, no

• प्रतिज्ञाम् (pratijñām) - Refers to Dasaratha's promise to Kaikeyi. (vow, promise, assertion)

• अहं (ahaṁ) - I

• पितुः (pituḥ) - Of Rama's father, King Dasaratha. (of the father)

Words meanings and morphology

लक्ष्मीः (lakṣmīḥ) - fortune, prosperity, goddess Lakshmi

(proper noun)

Nominative, feminine, singular of lakṣmī

lakṣmī - fortune, prosperity, wealth, beauty, the goddess Lakshmi

चन्द्रात् (candrāt) - from the moon

(noun)

Ablative, masculine, singular of candra

candra - the moon, moon-like, brilliant

from root 'cand' (to shine)

Root: cand (class 1)

अपेयात् (apeyāt) - might depart, might go away

(verb)

3rd person , singular, active, optative (liṅ) of ape

Optative

from 'apa' (away) + root 'i' (to go). Optative 3rd person singular.

Prefix: apa

Root: i (class 2)

वा (vā) - or, either

(indeclinable)

हिमवान् (himavān) - Refers to the Himalayan mountains. (Himalaya, the snowy mountain)

(proper noun)

Nominative, masculine, singular of himavat

himavat - snowy, covered with snow; the Himalaya mountains

from 'hima' (snow) + possessive suffix 'matup'

वा (vā) - or, either

(indeclinable)

हिमं (himaṁ) - snow, cold

(noun)

Accusative, neuter, singular of hima

hima - snow, frost, cold

त्यजेत् (tyajet) - might abandon, might forsake

(verb)

3rd person , singular, active, optative (liṅ) of tyaj

Optative

Root 'tyaj'. Optative 3rd person singular.

Root: tyaj (class 1)

अतीयात् (atīyāt) - might transgress, might go beyond

(verb)

3rd person , singular, active, optative (liṅ) of atī

Optative

from 'ati' (beyond) + root 'i' (to go). Optative 3rd person singular.

Prefix: ati

Root: i (class 2)

सागरः (sāgaraḥ) - the ocean, the sea

(noun)

Nominative, masculine, singular of sāgara

sāgara - the ocean, the sea

वेलां (velāṁ) - the shore or fixed boundary of the ocean. (shore, boundary, limit, time)

(noun)

Accusative, feminine, singular of velā

velā - shore, coast, boundary, limit, time

न (na) - not, no

(indeclinable)

प्रतिज्ञाम् (pratijñām) - Refers to Dasaratha's promise to Kaikeyi. (vow, promise, assertion)

(noun)

Accusative, feminine, singular of pratijñā

pratijñā - promise, vow, agreement, assertion

from 'prati' (towards) + root 'jñā' (to know)

Prefix: prati

Root: jñā (class 9)

अहं (ahaṁ) - I

(pronoun)

Nominative, singular of aham

aham - I

पितुः (pituḥ) - Of Rama's father, King Dasaratha. (of the father)

(noun)

Genitive, masculine, singular of pitṛ

pitṛ - father