undeathlinessEtymologyInherited from Middle English undeðlicnesse, from Old English undēaþlīcness. Analyzeable as undeathly + -ness.undeathliness means the state or condition of being undeathly; immortality. Lexicurio rates it Sui generis — a strength score of 100 out of 100.nounThe state or condition of being undeathly; immortality.“The man then right earnest asked the nun of which death the dead man was died and the nun answered him and said that he was died in Mona island through bellycrab three year agone come Childermas and she prayed to God the Allruthful to have his dear soul in his undeathliness.”