ppl. a. and sb. Obs. [ad. med.L. triplāt-us, pa. pple. of triplāre to triple (Johannes de Janua, a. 1286).] a. ppl. a. Multiplied by three; triplicated, triple. b. sb. The product of a number multiplied by three. So † Triplated ppl. a., triple, threefold; † Triplation, multiplication by three, tripling.
c. 1430. Art of Nombryng, 17. Thow most trebille the digit, and that triplat is to be put vnder the .3.[rd.] next figure towarde the right honde. Ibid., 18. After-warde … settyng away alle that is ouer the hede of the triplat nombre. Ibid. Nother me shalle not cesse of the fyndynge of that digit, neither of his triplacioun,… tille it come to the first figure.
1486. Bk. St. Albans, Her., E vij. Off tractis triplatit and quatriplatit othyrwyle…. He berith golde a trace triplatit of Siluer.
1501. Douglas, Pal. Hon., I. xli. Fresche ladyis sang in voice virgineall … Proportionis fine with sound celestiall, Duplat, triplat, diatesserial [etc.].
1542. Recorde, Gr. Artes (1575), 167. Triplation is multiplying by 3.
1574. H. Baker, Well-spring Sci. (1617), 76. Example of Triplation. If you will triple 3/5, you must diuide 3/5 by 1/3 [etc.].
