SATIETY (n.)
From Latin satietatem “sufficiency, fullness, abundance” from satis “enough” from √SA- “to satisfy.”
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SATISFY (v.)
From Latin satisfacere “discharge fully, comply with, make amends,” literally “do enough,” from satis “enough” + facere “to make, do, perform” from √DHE- “to set, put”
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SATURATION (n.)
From Late Latin saturationem, from saturare “to fill full, sate, drench,” from satur “sated, full,” from √SA- “to satisfy.”