Where does “hunch” come from?

I appreciate the detailed instructions, but I notice a significant issue: the etymology chain provided appears to be for "hunk" or related to "-ana/-anus" suffixes, but the headword you're asking me to write about is "hunch," and the chain doesn't seem to trace "hunch" back through those languages. Could you clarify: 1. Is the headword "hunk" (which would match the chain), or "hunch"? 2. Should I be working from a different chain for "hunch"? I want to ensure accuracy before composing the sentence, since inventing an etymology would violate your rules about stating only what the chain supports.

hunch (English): A hump; a protuberance; A stooped or curled...