nithful

== Middle English == === Alternative forms === nyþeful niðful, niþfull, nyðful (Early Middle English) === Etymology === Inherited from Old English nīþfull; by surface analysis, nith +‎ -ful. === Pronunciation === IPA(key): /ˈniːθful/ === Adjective === nithful (poetic) Hateful, malign, jealous; showing envy or hate. === References === “nīthful, adj.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007.