koukou kouoro kourao kourga kourou krabbe krager kragga krakau krakoa krauka kregbe kreker kroger krokau krokek krrabe kruger kubaba kubeer kubera kuggar kuharu kukere kukhar kuokka kuraka kurakh kurara kurbag kurbar kureha kurgah kurgeh kurgha kurkar kurogo kuroko kurree kuruba kurukh kururu o-hook oakura oarage obarok obera oberau oberea oberek oborka obourg obubra oerbke oeroeg ogakor ogarka ogauge ogbaru oghara ohagro ohohoh okaber okahao okbara okerer okhare okorag okoure oohooh ookroo oooooo oorahu orbaek orbara orrage orrho- orrour ouerre ourage ourear raabau rababa rabbah raberg rabkor rabuke rabuor ragbag ragbeh raggah raggee ragger ragghe ragheb ragrug rahara rahbar rahbeh rahere rahgah rahrah rahugh rakkee rakugo rarahu raraka rarog re-bar rearea rearer rebake rebear reboke rebook rebore rebouk rebour rebuke reebok reeker regear regehr reggae regrab regueb rehara rehber rehear reheur rehook rerage rerake rerobe reubke reuere reuour reurge rhaebo rhebok rhogog roague roarer roarke roauer robbah robber robo-g rogerr rogger roguer rohrau rokker rokkor rokuko rokuro roogoo rooker rorbua rorek rorgue roughe rourke ruagea rubage rubarb rubbee rubber rubbra rubgag rubro- rugger ruhroh rurkee uahuka ubauro uehara uekera ugboba uh-huh ukbara urhobo urouer uroure uruagu uruara urughu uuearu