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dimension (n.)

late 14c., "measurement, size," from Latin dimensionem (nominative dimensio) "a measuring," noun of action from past participle stem of dimetri "to measure out," from dis- (see dis-) + metiri "to measure," from PIE root *me- (2) "to measure." Meaning "any component of a situation" is from 1929. Related: Dimensional; dimensions.