As a deity name
Name 746 of the Durga Sahasranāma — Kula Arnava Tantra / Skanda Purana, as taught by Lord Shiva to Goddess Parvati
As a Hindi name
No reading on this path — this spelling has no entry in our Hindi sources, and no near neighbour is attested there either. We say so rather than invent one.
As a Sanskrit word
Meaning
Deep or profound sleep, profound repose. 2 Great insensibility, spiritual ignorance; avidyātmikā hi saṃsāriṇo jīvāḥ on.
Scripturally attested Verified derivationWhy this matches what you typed
M2 · same meaning "suṣuptiḥ" is "suṣupti" with final visarga (ḥ) — regular end-of-word sandhi (Aṣṭādhyāyī 8.3.15, cited from the engine's own derivation). Same word.
visarga sandhi · aṣṭādhyāyī 8.3.15 — cited from the derivationDictionary citations
suṣuptiḥ f. 1 Deep or profound sleep, profound repose. 2 Great insensibility, spiritual ignorance; avidyātmikā hi bījaśaktiravyaktaśabdanirdeśyā parameśvarāśrayā māyāmayī mahāsuṣuptiryasyāṃ svarūpapratibodharahitāḥ śerate saṃsāriṇo jīvāḥ Ś. B. on Br. Sūt. 1. 4. 3.
su—ṣupti f. deep sleep (in phil. ‘complete unconsciousness’), Vedāntas.
suṣupti f. (-ptiḥ) Deep sleep, profound repose, entire insensibility. E. sa well, ṣvapa to sleep, ktin aff.
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