Obs. [a. med.L. (also OF.) bisse, L. bes two thirds of an as, etc., explained as be-is = binæ partes assis.] Two thirds.
1398. Trevisa, Barth. De P. R., VIII. xvii. (1495). [The mone] abydeth in euery signe ii dayes & vi houres and bisse. Ibid. And full endyth his course in xxvij dayes and viij houres.
