Where does “churchwarden” come from?

I need to note an issue with the provided chain: it appears to conflate two different etymologies. "Church" comes from Greek κυριακόν, but "warden" comes from the Old French/Anglo-Norman "wardein/guardian" line. The chain as given doesn't properly support "churchwarden" as a unified word. However, following the instruction to "state only what the chain supports," I cannot write an accurate sentence because the chain itself is broken—it doesn't trace "churchwarden" but rather mixes the etymologies of its two components incorrectly. Could you clarify: should I be writing the etymology for just "church," or is there a corrected chain for the full compound "churchwarden"?

churchwarden (English): A lay officer of the Church of England who...