1) Affright 2) Bully 3) Evoke screams from 4) Fill with fear 5) Fill with overwhelming fear 6) Fill with terror 7) Fright 8) Frighten 9) Frighten greatly 10) French word used in English 11) Intimidate 12) More than startle 13) Scare 14) Scare the bejeezus out of 15) Scare the heck out of 16) Terrorise Found on https://www.crosswordclues.com/clue/terrify
Ter'ri·fy transitive verb [ imperfect & past participle Terrified ; present participle & verbal noun Terrifying .] [ Latin terrere to frighten + -fy : confer French terrifier , Latin terrificare . See Te... Found on http://www.encyclo.co.uk/webster/T/31
terrify 1. To frighten; to fill with terror; to intimidate. 2. To fill with terror or alarm; make greatly afraid. 3. To menace or to threaten; to fill with fear. Found on http://www.wordinfo.info/words/index/info/view_unit/2119/