overjawEtymologyFrom Middle English overjowe, over jawe, a partial calque of earlier Middle English over chavel (“upper jaw”), equivalent to over- + jaw.overjaw means The upper jaw (superior maxillary). Lexicurio rates it Sui generis — a strength score of 94 out of 100.nounThe upper jaw (superior maxillary).“And when they eat, they move the overjaw and nought the nether jaw, and they have no tongue.”