co-opn cocco- cococo cocoon concon concur connon connor conoco coocoo coopup copnor copro- cornon coroun corour corrop corrup coruco coruro coupon coupru courp- courr- crocco cronon cropon cropup crupon cruro- cupro- curfur curour curror cururo foofoo foofur forfun foufou fourcc fourof fourou frucor fruupp funoon funrun furcon furfur furour furrfu furuno noforn non-no non-op noncon nonono nonoon nonpro noonoo noonor noroff noroof nounou nurpur occour of-run ofpoor on-off oncorn oooooo opocno orccon orrour ouroun pocono ponnur poofup poopoo pop-up popfor popoff popopo poporo poppop porno- porron poupon poupou pouron pppppp procop procor profor profur propup propur pucon pucuro puffon puffun puffup punpun purnor purpur rococo ronnon ronron roucou rounou run-on run-up runfor runoff ruocco ucuncu uncoop uncorn uncuff unpoco unprop unpuff unroof unu-op uponon uponor uppcon uppoor upprop urucup uruppu