RETROCESSION

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cees cent cere cero cess cete cine cion cire cist cite coin coir cone coni cons coon coos coot core corn cors coss cost cote cots cris crit eons erne erns eros errs erst eses esne etic ices icon inro into ions ires iron ness nest nets nice nite nits noes noir nori nose note once ones onos onto oots orcs ores orts oses otic recs rees rein reis rent rest rete rets rice rins riot rise rite rocs roes root rose rote roti roto rots scot secs sect seen seer sees seis sene sent sere sers sets sice sics sine sins sire sirs site sits snit snot sone sons soon soot sore sori sorn sort sots sris stir teen tees tens tern tics tier ties tine tins tire tiro toes tone tons toon torc tore tori torn toro torr tors toss tree tres trio