Same entry in Photius and other lexica. Both headword and gloss are perfect middle/passive participles, masculine nominative plural. The first -- evidently quoted from somewhere: probably the Septuagint, where it occurs twice -- is from the verb zw/nnumi; the second is from e)kdu/w. These two verbs do not seem to mean the same thing, but perhaps "girded" means wearing only an athletic belt and otherwise being stripped for athletic competition (cf. LSJ s.v. A.II). Note, however, V. Schmidt's tentative emendation (reported in Theodoridis ad loc.) of e)ndedume/noi for e)kdedume/noi.