From s- +badigliare (cf. also older badagliare), ultimately from Vulgar Latin*bataclāre, from *batacŭlāre, derivative of batāre(“to yawn”), possibly influenced by Old Provençal badalhar. Compare Venetian sbadagiar, badagiar, Sicilian badagghiari, French bâiller, Occitan badalhar, Catalan badallar.