frighten (part of speech: verb)
haunt (part of speech: verb)
- Fred was quite as confidential with his mother as she with her father, and the boy had been wild to horrify Mrs. Hargrove by an account of his sister's adventure. - "Nature's Serial Story", E. P. Roe.
- Horrors heaped upon horrors, and which are horrors only in themselves, and not as touching any recognised and known person, are not tragic, and soon cease even to horrify. - "Autobiography of Anthony Trollope", Anthony Trollope.
- Looking over the lectures again they horrify me with their loud- mouthed imbecility! - "Notes of a Son and Brother", Henry James.