ogboni oglala ogling ogmuna ogongo ogulin oilgun oiling oilman olaibi olalla olgaon olgii olgino oliana oliang oliban oligia oligo- olinga olingo olinia oliola ollila ollola ologun olunin omagua omalo- ombili ombuin omgili omiini ominal omnibi omnium omoio- omolio omolon omonia omulna omulno onabun onagga onagig onagon onalog onamia onani onanon onbail ongang ongoal ongoni oniani onloan onmail onnion ononin onuimo oolala oolong oooooo oualia ouanga ouango ouioui oulong ouolon ubala ubangi ubilla ubinig ubombo ubongo ubungo ugalla ugallu ugamia ugboba ugging uguana uguano ulanga ulania ulaula uligan ulinia ullalu ullman ulmann ulubab umagon umaill umauma umgang uminum umming umonin umunna un-man unaoil unbain unball unbung ungain ungang unglib ungogo ungual unguan ungui- ungula ungull unguma uniao unigun unimai unimin unimog uniola unionu unlimb unlull unmail unmain unmoan unnail unning unomig uoaman