niddering

noun

1. (archaic)Synonym of nithing (“a coward, a dastard; a wretch”).

   “[O]n the bodies of his fallen foes he kicked the gray road dust, and spat on them and named them churls and nidderings and unfit wearers of the mail of men of war.”

adj

1. (archaic)Synonym of nithing (“cowardly, dastardly; notoriously evil or wicked; infamous”).

   “I require of thee, as a man of thy word, on pain of being held faithless, man-sworn, and nidering [footnote: Infamous], to forgive and to receive to thy paternal affection the good knight, Wilfrid of Ivanhoe.”

   “Though thou art my son, I say this, that, if thou workest ill to Eric when he is over sea, thou shalt rightly learn the weight of Whitefire: it is a niddering deed to plot against an absent man.”