Words that come from Proto-Indo-European pr̥k-

47 words across 10 languages descend from Proto-Indo-European pr̥k- — including fright, frightening, frighten, frighteningly, frightener, frightsome, unfrightening, frighteneth.

See the etymology of pr̥k- itself →

English (22)

German (6)

Danish (4)

Middle English (3)

Old English (3)

Old High German (2)

Proto-Germanic (2)

Proto-West Germanic (2)

Middle High German (2)

Middle Low German (1)