The headword ki/bhsis is a variant spelling of ki/bisis, which occurs in Hesiod, Shield 224: "the head of a dreadful monster, the Gorgon, covered the broad of his back, and a bag [chest?] of silver -- a marvel to see -- contained it". The Etymologicum Gudianum goes further, with its gloss "as in, the ki/bhsis of the Israelites [i.e. the Ark of the Covenant] and a chest, i.e. a sakkopa/qnion. But in other lexica, a sakkopa/qnion is a pouch (Hesychius s.v. xlido/s, ps.-Zonaras s.v. a)skoph/ra, Etymologicum Gudianum and Etymologicum Magnum s.v. ph/ra, alpha 4178). All other lexica glossing ki/bisis ~ ki/bhsis likewise hedge their bets and gloss it as "chest or pouch" (John Pediasimus, scholia on Hesiod, Shield 633; Etymologicum Magnum s.v. ki/bisis; scholia on Lycophron, Alexandra 838), or just pouch (Hesychius "pouch, in Cypriot"; scholia on Theocritus, Idylls 1.53d).
For the glossing term see kappa 1578.