Old English higian "strive, hasten," originally "to be intent on," from Proto-Germanic *hig- (source also of Middle Dutch higen "to pant," Middle Low German hichen, German heichen), from PIE root *kigh- "fast, violent." Related: Hied; hies; hieing.
hideously
hideousness
hideout
hiding
hidy-hole
hie
hiemal
hierarch
hierarchal
hierarchic
hierarchical