apa karṣaka

 In Sanskrit, the compound "apa-karṣaka" (अपकर्षक) is formed by the prefix "apa-" (अप) and the root/substantive "karṣaka" (कर्षक).

1. Karṣaka (कर्षक)

• Origin: From the root kṛṣ (कृष्) meaning “to draw, pull, plough or cultivate.”
• Definitions:
  1. Cultivator of the soil – a farmer or husbandman, one whose profession is agriculture.
  2. One who draws or drags – in a general sense of pulling or attracting.
  3. As an adjective: ploughing, cultivating, tearing, vexing (context-dependent; e.g., Agni-purāṇa).

References include the Bṛhatsaṃhitā, Mahābhārata, Yājñavalkya Dharmaśāstra, where karṣaka is used specifically to denote farmers or agriculturalists.

2. Apa- (अप)

• A common Sanskrit prefix meaning:
  • “away from,” “off,” or “down”
  • In classical Sanskrit context, it often conveys separation, removal, or detracting.

3. Apa-karṣaka (अपकर्षक)

• Combining "apa-" + "karṣaka" gives apa-karṣaka, literally meaning:
  1. "One who draws away", or
  2. "Detracting or diminishing", depending on context.
• dictionaries explain it as “drawing down, detracting” (Monier-Williams).

4. Contextual Usage

• If referring to human activities: could imply someone who weakens or diminishes something.
• In a more literal or occupational sense, when juxtaposed in texts about agriculture, “karṣaka” retains its sense as farmer or cultivator, whereas “apa” may modify it to indicate negative or diminishing action.

Summary

Term	Meaning
karṣaka (कर्षक)	Farmer, cultivator, one who ploughs the soil; one who  draws or attracts
apa- (अप)	Away from, off, down; detracting, removal
apa-karṣaka (अपकर्षक)	Detracting, drawing away, diminishing; in literal compounds, one who diminishes or pulls away

References:

1. Monier-Williams Sanskrit-English Dictionary
2. Wisdom Library – Karṣaka entry
3. Bṛhatsaṃhitā, Mahābhārata, Yājñavalkya Dharmaśāstra

In short, apa-karṣaka denotes “drawing down or detracting,” while karṣaka by 

itself primarily means “cultivator or farmer.”