Frighten
来自Big Physics
Old English fryhto, fyrhto (noun), of Germanic origin; related to Dutch furcht and German furcht .
wiktionary
From fright + -en.
etymonline
frighten (v.)
"strike with fear, terrify," 1660s, from fright (n.) + -en (1). Related: Frightened; frightening. The earlier verb was simply fright (v.).