I can confer that German has Schluckauf (swallow-up). But if your hiccup sound like hiccup, not just hick, then you have a real problem. Schluckauf is only atte

I can confer that German has Schluckauf (swallow-up). But if your hiccup sound like hiccup, not just hick, then you have a real problem. Schluckauf is only attested for the 18th ct. so it might well come from English. Anything labeled onomatopoetic is doubtful. It's almost always a cop out.