anyedyus

 anyedyus is an indeclinable adverb meaning “on the other day,” “on the following day,” or “once.”

Core definition

All major dictionary sources agree that anyedyus (अन्येद्युस्) is an adverb with the sense:

• on the other day / on the following day

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• once or the other day

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These meanings appear consistently in the Cologne Digital Sanskrit Dictionaries and Monier‑Williams entries.

Grammatical notes

• Part of speech: indeclinable adverb (avyaya)

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• Usage: expresses a time reference to a day other than the present—usually “the next day” or “the previous day,” depending on context.
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Example of classical usage

The Kosha.App dictionary cites:

• anyedyur ātmānucarasyabhāvam (Raghuvaṃśa 2.26)

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  where anyedyuḥ / anyedyus indicates an event occurring “on the other day.”
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Related term: anyedyuṣka / anyedyuska

The results also include anyedyuṣka / anyedyuska, which is not the same word.
It is an adjective meaning:

• “occurring every other day,” “daily,” or “diurnal”

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• and in Ayurveda, “a quotidian fever” (a fever recurring daily)

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This is a derived form (with the suffix ‑ka) and should not be confused with the simple adverb anyedyus.

Summary

• anyedyus = adverb meaning “on the other day / following day / once.”
• anyedyuṣka = adjective meaning “daily / every other day,” also a term for quotidian fever in medical texts.