apa jargurāṇa

 The phrase “apa jargurāṇa” is most naturally written in Devanagari as अप जर्गुराण

apa‑jargurāṇa is the intensive participle of the verb apa‑gṛī / apa‑gur, meaning 

“rejecting, disapproving, threatening, or inveighing against.”

What the sources say

• The entry for apa‑gṛī / apa‑gur states that it means “to reject, disapprove, 
• threaten; to inveigh against someone” and explicitly lists apa‑járgurāṇa 
• as its intensive participle

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  This is the only directly relevant result.
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  1 Source

Breaking down the word

• apa‑ is a Sanskrit verbal prefix meaning “away, off, negatively, rejecting”

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  It often gives a verb a sense of removal, negation, or reproach.
• The root gṛī / gur (Vedic) means “to blame, censure, scold, threaten.”
• The intensive stem (reduplicated) gives a sense of strong, repeated, 
• or emphatic action.
• The ending ‑āṇa is the present active participle in Vedic Sanskrit.
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Putting it together

apa‑jargurāṇa therefore literally means:

• “one who is repeatedly or strongly censuring / rejecting / threatening,”
• “inveighing against,”
• “expressing strong disapproval.”

This form appears in the Ṛgveda (RV 5.32.6), where it describes an agent actively

and forcefully speaking against someone.

About the prefix apa‑

Although many results discuss āpa / apa = water in Hinduism , that is a different

word and unrelated to the verbal prefix here.
The relevant meaning of apa‑ is the negative or “away” prefix used 

with verbs

sanskritwisdom.com

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Summary

• apa‑jargurāṇa = intensive participle of apa‑gṛī / apa‑gur
• Meaning: “rejecting, disapproving, threatening, inveighing against.”
• Form: Vedic, reduplicated, present active participle.