Saturation
来自Big Physics
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late Middle English (as an adjective in the sense ‘satisfied’): from Latin saturat- ‘filled, glutted’, from the verb saturare, from satur ‘full’. The early sense of the verb (mid 16th century) was ‘satisfy’; the noun dates from the 1950s.
wiktionary
etymonline
saturation (n.)
1550s, formed in English from saturate, or else from Late Latin saturationem (nominative saturatio), noun of action from past participle stem of saturare "to fill full, sate, drench," from satur "sated, full," from PIE root *sa- "to satisfy." Saturation bombing is from 1942, first in reference to Allied air raid on Cologne, Germany.
