A mysterious entry, where the sense of the gloss (cf. under zeta 187) is clearer than that of the headword. In other contexts the headword can mean security for a debt (e.g. Pollux 3.85, Photius s.v., and cf. LSJ s.v. u(po/bolos, 'f[alsa] l[ectio] for u(pw/bolos', mortgaged); but 'toe' as the gloss seems to require here a broader sense, drawing on the etymology of u(poba/llw.