umbelap

For hit is a figure that haldes · five pointes, / And eche line umbelappes · and loukes in other, / And aywhere hit is endeles; · and Englich hit callen / Overal, as I here, · the endles knot.

For it [the emblem on Gawain’s shield, a pentagram] is a shape that has five points, / And each line overlaps and crosses another, / And everywhere it is endless, so in English it is called / Everywhere, as far as I know, "the endless knot".]