wine press
醡 centers on a device for pressing liquid from fruit, specifically a wine press used in brewing.
醡 combines 酉 (wine jar) with 窄, which likely contributes the sound and the idea of pressing or squeezing. The character is specifically associated with a wine press.
The left side is a wine jar 酉, and the right side 窄 suggests something narrow or squeezed. Picture a narrow press squeezing juice from grapes into a wine jar: 醡 is a wine press.
For サ, imagine the sound of a wine press squeezing: 'saaa' as the juice flows. The 'sa' sound cues サ while the press works.
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