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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).
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."