As a deity name
Name 465 of the Vishnu Sahasranāma — Mahabharata (Anushasana Parva), as taught by Bhishma to Yudhishthira on his deathbed
As a Hindi name
स्वापन · noun · masculine
प्राचीन काल का एक प्रकार का अस्त्र जिससे शत्रु निद्रित किए जाते थे · नींद लानेवाली औषध · निद्रित करना । सुलाना (को॰) — Śabdasāgara
स्वापन · adj
जिससे नींद आए । नींद लानेवाला । निद्राकारक — Śabdasāgara
Cited formation "स्वापन" is स्वाप + -न: स्वाप means "नींद । निद्रा", and the suffix -न forms abstract nouns (masc. or fem.). CHD Basic Grammar App. I §8(18) — cited from the extracted rule table — base gloss: Śabdasāgara
As a Sanskrit word
Meaning
causing to sleep, making sleepy (said of a mystic weapon)
Scripturally attested Verified derivationMultiple readings (9)Why this matches what you typed
The spelling you confirmed, स्वापन, is itself a dictionary headword — no grammatical transformation stands between what you typed and the meaning above.
Dictionary citations
svāpana mfn. (fr. Caus.) causing to sleep, making sleepy (said of a mystic weapon), Śiś.
svāpana n. a soporific (remedy), Kauś.
Alternative readings
More than one analysis survives full verification. That ambiguity is real, so we show every reading rather than pick one silently.
Caveats
Sources contain errors and engines have limits; every claim above carries its citation so you can verify it. This is guidance about names and their sources — not religious or astrological consultation. How we work · Our sources