As a deity name
Name 786 of the Gayatri Sahasranāma — Devi Bhagavata Purana, as taught by Sages
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
A proper name, the wife of RĀVAṆA. E. manda slow, heavy, udara the belly, aff. ṅīṣ.
Scripturally attestedWhy this matches what you typed
M1 · same meaning "mandodaryai" is the dative of "mandodarī" — the same word in a different grammatical case.
Dictionary citations
mandodarī f. N. of Rāvaṇa's favourite wife (daughter of Maya and mother of Indra-jit; she advised her husband to deliver Sītā to Rāma, but he did not heed her; she is regarded as one of the five very chaste women, the other four being Ahalyā, Draupadī, Sītā, and Tārā), MBh.; R. &c.
of one of the Mātṛs attending on Skanda, MBh.
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