retch
Retch (verb) means to make the movements and sounds of being sick without actually bringing anything up.
Etymology
It comes from Middle English *recchen, *rechen (found in arechen), hræcen (“to cough up”), from Old English hrǣċan (“to clear the throat, hawk, spit”), from Proto-West Germanic *hrākijan, from Proto-Germanic *hrēkijaną (“to clear one's throat”), from Proto-Indo-European *kreg- (“to caw, crow”). It is cognate with Icelandic hrækja (“to hawk, spit”), Limburgish räöke (“to induce vomiting”), Bavarian reckn (“to retch, gag”) and German recken (“to retch, gag”), and is also related to German Rachen (“throat”).