Lewis & Short

circum-necto, no perf., nexum, ĕre, v. a., to wrap or bind around, surround, envelop (late Lat.): elephanti flammis conjectis undique circumnexi, Amm. 19, 7, 7: tenuis membrana illa perlucens, quā circumnectitur alvus, ac tegitur, Lact. Opif. Dei, 14, 2 (al. circumretitur).