overhate means to hate excessively. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
From over- + hate.
verb
- To hate excessively.“From sucklings hath thy honor sprung, Thy force hath flow'd from babies tongue: Whereby thou stopp'st thine en'mies prating Bent to revenge and overhating.”