anceps, = of an object whose qualities have significance in two respects, double, that extends on two opposite sides; e.g. two-headed, two-edged.
(two-edged) (ld, BL)
in-, un-, = not;
claudo, = to shut something that is open, to close, shut up.
includo, inclaudo, = to shut up, shut in, confine, enclose, imprison, keep in.
(Erepsias do not shut up at night) (ld, LB)