PROGENITORS

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ego eng ens eon erg ern err ers gen get gie gin gip git goo gor gos got ins ion ire its neg net nip nit nog noo nor nos not oes one ono ons oot ope ops opt ore ors ort ose peg pen per pes pet pie pig pin pis pit poi poo pot pro psi pst reg rei rep res ret rig rin rip roe rot seg sei sen ser set sin sip sir sit son sop sot sri teg ten tie tin tip tis toe tog ton too top tor

egis egos engs eons epos ergo ergs erns eros errs erst gens gent gest gets gien gies gins gips girn giro girt gist gite gits goer goes gone goon goop goos gore gorp grin grip grit grot inro into ions ires iron negs nest nets nips nite nits noes nogs noir nope nori nose note ogre ones onos onto oops oots open opes opts ores orts pegs pein pens pent peon peri pert peso pest pets pier pies pigs pine ping pins pint pion pirn piso pits poet pois pone pong pons poon poor poos pore porn port pose post pots prig prog pros regs rein reis rent repo reps rest rets rigs ring rins riot ripe rips rise rite roes root rope rose rote roti roto rots sego sent sept sign sine sing sipe sire site snip snit snog snot sone song soon soot sore sori sorn sort spin spit spot step stir stop tegs tens tern tier ties tine ting tins tips tire tiro toes togs tone tong tons toon tope topi topo tops tore tori torn toro torr tors tres trig trio trip trog trop