LSJ s.v. kibwto/s [kappa 1578] mentions this entry as a suggested root form of the noun, whose etymology is problematic. But the same derivation is given in Choeroboscus (On Orthography), the Etymologicum Gudianum, the Etymologicum Magnum, and ps.-Zonaras, with the last three attributing it to Horus of Miletus: "it may be from ki/bos, meaning 'food'." That is, Horus seems to have suggested a derivation from Latin cibus, which is implausible given how early the noun appears in Greek. Lewy (1895:99-100) has suggested an Aramaic etymology (qūbbʿta "water tank" or qēbʿta "stomach"), and takes the derivation from ki/bos seriously, as closer to the Hebrew/Phoenician origins of the word. (The two Aramaic forms correspond to Hebrew qubbā and qēbā.)