Where does “holes” come from?

I need to flag a critical issue with this etymology chain: it appears corrupted or nonsensical. The chain jumps from "Old English helan" (meaning to conceal/cover) directly to "Latin oleum" (oil), which are unrelated words in different language families. Then it cycles back to "Latin oleum" and includes an isolated PIE suffix "-kos" without connection. This chain cannot support an accurate etymology sentence because: 1. "Hole" does not derive from Latin "oleum" (oil) 2. "Helan" (to conceal) and "oleum" (oil) are etymologically unconnected 3. The chain is internally contradictory and breaks fundamental linguistic principles **I cannot write a sentence that would responsibly appear on an etymology page, as doing so would spread misinformation.** Could you verify the etymology chain? A genuine "hole" etymology would trace: English

holes (English): plural of hole; Third-person singular simple...