Left indexing wine-jar radical
酉 (Kangxi #164) — pictograph of a narrow-necked fermentation vessel. Carries the meaning core of
配: the original sense was the colour or grade of an aged wine, then "matching wines together," from which the broader "pair / match / blend" developed. Same radical anchors
酒 (wine),
醉 (drunk),
醋 (vinegar),
酸 (sour) — the entire fermentation family.