वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-7, chapter-75, verse-15

यदा हि प्रीतिसंयोगं त्वया विष्णो समागतः ।
तदा प्रभृति लोकानां नाथत्वमुपलब्धवान् ॥१५॥

15. yadā hi prītisaṃyogaṃ tvayā viṣṇo samāgataḥ ,
tadā prabhṛti lokānāṃ nāthatvamupalabdhavān.

15. yadā hi prīti-saṃyogam tvayā viṣṇo samāgataḥ
| tadā prabhṛti lokānām nāthatvam upalabdhavān

15. viṣṇo,
yadā hi tvayā prīti-saṃyogam samāgataḥ,
tadā prabhṛti lokānām nāthatvam upalabdhavān

15. O Viṣṇu, since he attained a union of affection with you, from that time onwards, he has achieved lordship over the worlds.

Words meanings summery:

• यदा (yadā) - at the time when; since (when; whenever)

• हि (hi) - emphasizing the reason or explanation (indeed; surely; for)

• प्रीति-संयोगम् (prīti-saṁyogam) - a bond or connection based on mutual affection or love (a union of affection; an affectionate connection)

• त्वया (tvayā) - through or with you (Viṣṇu) (by you)

• विष्णो (viṣṇo) - Addressed to the deity Viṣṇu (O Viṣṇu)

• समागतः (samāgataḥ) - he (Vṛtra) attained or reached (a union) (approached; met; attained; arrived)

• तदा (tadā) - following the time of establishing affection (then; at that time)

• प्रभृति (prabhṛti) - starting from that specific time or event (from; from that time; beginning with)

• लोकानाम् (lokānām) - over all the various worlds and their inhabitants (of the worlds; of the people)

• नाथत्वम् (nāthatvam) - the position or power of being a lord or master (lordship; sovereignty; state of being a protector)

• उपलब्धवान् (upalabdhavān) - he gained or achieved (lordship) (he obtained; he acquired; he perceived)

Words meanings and morphology

यदा (yadā) - at the time when; since (when; whenever)

(indeclinable)

हि (hi) - emphasizing the reason or explanation (indeed; surely; for)

(indeclinable)

प्रीति-संयोगम् (prīti-saṁyogam) - a bond or connection based on mutual affection or love (a union of affection; an affectionate connection)

(noun)

Accusative, masculine, singular of prītisaṃyoga

prītisaṁyoga - union of affection; affectionate connection

Compound type : tatpuruṣa (prīti+saṃyoga)

• prīti – affection; love; pleasure; joy
  noun (feminine)
  Root: prī (class 9)
• saṃyoga – union; connection; conjunction; contact
  noun (masculine)
  From √yuj (to join) with prefix sam-
  Prefix: sam
  Root: yuj (class 7)

त्वया (tvayā) - through or with you (Viṣṇu) (by you)

(pronoun)

Instrumental, singular of yuṣmad

yuṣmad - you

विष्णो (viṣṇo) - Addressed to the deity Viṣṇu (O Viṣṇu)

(proper noun)

Vocative, masculine, singular of viṣṇu

viṣṇu - Viṣṇu (name of a prominent Hindu deity); the pervader

समागतः (samāgataḥ) - he (Vṛtra) attained or reached (a union) (approached; met; attained; arrived)

(adjective)

Nominative, masculine, singular of samāgata

samāgata - arrived; met; come together; attained

Past Passive Participle

From √gam (to go) with prefixes sam- and ā-

Prefixes: sam+ā

Root: gam (class 1)

Note: Used here with an active sense: 'he who has attained'.

तदा (tadā) - following the time of establishing affection (then; at that time)

(indeclinable)

प्रभृति (prabhṛti) - starting from that specific time or event (from; from that time; beginning with)

(indeclinable)

Note: Often used with a word in ablative case or as a compound (like tadā prabhṛti).

लोकानाम् (lokānām) - over all the various worlds and their inhabitants (of the worlds; of the people)

(noun)

Genitive, masculine, plural of loka

loka - world; realm; people

नाथत्वम् (nāthatvam) - the position or power of being a lord or master (lordship; sovereignty; state of being a protector)

(noun)

Accusative, neuter, singular of nāthatva

nāthatva - lordship; sovereignty; mastership; protection

Derived from nātha (lord, master) with -tva suffix (abstract noun)

उपलब्धवान् (upalabdhavān) - he gained or achieved (lordship) (he obtained; he acquired; he perceived)

(adjective)

Nominative, masculine, singular of upalabdhavat

upalabdhavat - having obtained; having acquired; having perceived

Past Active Participle

From √labh (to obtain) with prefix upa- and -vat suffix (kṛt affix ktavatu)

Prefix: upa

Root: labh (class 1)