I. Biskotte s. f., pl. -en, oggi austr. gastr. / enol. 1434 (pischotto, 1470 [+ ted. ‹Brot› ‘pane’] biscockt brot, 1472/73 bischot brot, 1479 pisskoten prot ecc.) (Wis; Kluge: sec. XX).
?II. Biskuit < fr. (DuF; Keil, p. 14; Kluge: < fr. < lat.) → biscotte
?III. Zwieback (calco formale) s. m., gen. -(e)s, pl. -bäcke e -backe gastr. / enol. Sec. XV (Zweiback, Zweigeback) (Kluge; Pfeifer; DuGW; Paul; DuE: < it. o fr.).