Where does “wilder” come from?

I need to note that the chain provided shows "wild" and "weald" but the headword is "wilder," which isn't present in the chain. Additionally, the chain shows Proto-Indo-European wel- repeated three times identically, which seems incomplete or unclear about the semantic development. Given these inconsistencies, I cannot write an accurate one-sentence etymology summary. The chain doesn't support the headword "wilder" as given, and the repetition in the PIE section doesn't clarify meaning development. Could you verify: 1. Is the headword "wild" or "wilder"? 2. What is the actual chain for this word, including what wel- meant in PIE?

wilder (English): To bewilder, perplex; comparative form of wild:...