Where does “wholesale” come from?

I appreciate the detailed instructions, but I notice a significant problem with the provided chain: it appears to conflate two entirely different etymologies (one for "whole/hole" and one for "oil"), which cannot both be correct for "wholesale." The chain shows: - English whole ← Middle English hole ← Old English hol ← Old English helan ← Latin oleum... This doesn't make sense etymologically. "Whole" and "hole" have different origins, and neither connects to "oleum" (oil). To write an accurate one-sentence origin summary, I would need a corrected etymological chain for "wholesale." Could you verify the chain? For reference, "wholesale" should derive from "whole" (meaning complete/in bulk) + "sale," where "whole" comes from Old English *hāl (meaning sound/uninjured), not from the path shown here. Would you like

wholesale (English): The sale of products, often in large quantities,...