A suffix used to create units of quantity. Thustriplet, for example, is a unit of 3. However, words having this ending are also used to mean one member of the group rather than the group as a whole
Russ Rowlett (Director), How Many? A Dictionary of Units of Measurement, Center for Mathematics and Science Education University of North Carolina, USA 2005. http://www.unc.edu/~rowlett/units/dictA.html, (Unit of Meas and Covr Factors - Amer) {608}