DCHP-1 Online
hyak ((adv.)) hyack, hiak [< Chinook Jargon] B.C. 
adv. quickly; right away.
- 1915 "Klatawa!" (Go!) he commanded. "Hiak!" (Quick!) he shouted.
- 1927 "I seen hyak that I ain't got no chance o' gettin' the best in an exchange o' gay reparty with a jane that slings the wau-wau like she does."
- 1936 "Did you tell these other fellows about this?" "Non, I come hyak right to you."
- 1915 "Klatawa!" (Go!) he commanded. "Hiak!" (Quick!) he shouted.