syncopatio

syncopatio [LL syncopare+-tio], (act of) shortening by cutting out or omission. audietis ab eis divinum servicium absque festinacione aut cincopacione aliquali Regim. Princ. 115; 1508 ad deordinaciones in choro circa defectum luminarium et circa magistros cito intrantes ‥ et ingredientes ‥ sincopacione cantus in choro Reg. Merton I 370.