Where does “mo” come from?

I need to flag an issue: the chain provided doesn't support a coherent etymology for "mo" as an English headword. The chain traces "moustache" back through Italian and multiple PIE roots, but "mo" itself isn't established as a distinct headword with a documented relationship to these forms. Additionally, the chain structure is problematic—it lists multiple PIE roots in sequence (meh₂-, mē-, mendʰ-, men-, uds-) without explaining how they relate to each other or to "mostaccio," which makes it impossible to construct an accurate one-sentence summary that doesn't invent connections. **I cannot write this sentence responsibly.** To proceed, I would need: 1. Clarification of what "mo" refers to (a shortening of "moustache"? A separate word?) 2. A coherent chain showing how each form derives from the next 3

mo (English): to a greater degree; further, longer; Greater in...