horripilate: Word of the day for October 30, 2017

horripilate , v :
(transitive, intransitive) To bristle in fear or horror; to have goose bumps or goose pimples. Boo! Today is the eve of Halloween!

Source http://handbookblogger.blogspot.com/2017/10/horripilate-word-of-day-for-october-30.html