Ostent : A medieval name for the time unit now called the minute. (In medieval times a minute was equal to 1/10 hour, or 6 modern minutes). The ostent was equal to 8 ounces [4] (see below)
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}