i-ii-iii i-iv-v-i inopious inovirus inpoison inprison insision inspiron inunison invision ionopsis ionornis iooooooo ironious ironnoir irrision isospins nisipuri nison-in non-iron non-pros nonnosus nononono nonunion nonvirus noon-sun noropsis oonopsis opinions opinious oppinion opsonins orsippus orsisius ovivorus p-poppin pinopsin pioupiou piripiri piss-ups pissouri pisspoor poisoniv poissons poorpoor poroporo poropsis pour-soi pourpour poussins pouvoirs povorino prionops prisopus pronouns proornis propion- propriis proprios prosopis prosopo- prosopon prosorus prosupps provirus provisor provisos pruinous prunisor prvisins psorosis purpuri- purpurin riroriro risorius rosinous rosiori rossinis rousinov ruinporn runnions rupununi rusinovo sinornis sinuoso- sirnosir soissons sonorous soporous sosippus sour-sop sourpuss soursops spinoso- spinosus sponsion sponsons sponsors spornovo sporonin spurions spurious sunopsis sunovion sunvisor supprior survisor survivin survivor sussurus susurrus suvorovo svoronos svosov unpinion unpoison unporous unprison usurious vorovoro vourinos voussoir vouvouni