hide (v.1)youdaoicibaDictYouDict[hide 词源字典]
Old English hydan "to hide, conceal; preserve; hide oneself; bury a corpse," from West Germanic *hudjan (cognates: Middle Dutch, Middle Low German huden), from PIE *keudh- (source also of Greek keuthein "to hide, conceal"), from root *(s)keu- "to cover, conceal" (see hide (n.1)). Hide and seek (by 1670s), children's game, replaced earlier all hid (1580s).[hide etymology, hide origin, 英语词源]
hooky (n.)youdaoicibaDictYouDict
also hookey, in the truant sense, 1848, American English (New York City), from Dutch hoekje "hide and seek;" or else from hook it, attested since 14c. as "make off, run away," originally "depart, proceed."