septimation

== English == === Etymology === From Latin septimus (“seventh”) +‎ -ation, after decimation; compare septimate. === Pronunciation === (Received Pronunciation) enPR: sĕptĭmāʹshən, IPA(key): /sɛptɪˈmeɪʃən/ (US) IPA(key): /ˈsɛptəmeɪʃən/ === Noun === septimation (countable and uncountable, plural septimations) (rare) The loss, seizure, destruction, or killing of one seventh (of something or of a group). ==== Coordinate terms ==== (proportionate reduction, by single aliquot part): quintation (1/5), decimation (1/10), vicesimation (1/20), tricesimation (1/30), centesimation (1/100)