e-i-e-i- e-series ess-tset essertes fee-fees feistier ferreter ferrette ferretti ferriere ferrites fetterer fieriest fir-tree fire-set firesets firetest firrette firstest firsties firsttee firtrees freeseer freesite freester fressies fretters frettest frettir frisette friterie fritters i-ii-iii re-tries referees referers referree referrer refitter reifiers reiserfs rerefers rerefief reseiser resetter resister restiest restiffs restress retirees retirers retirest retretti rierreef ritesite s-series serretes sestette sestiere setsfree sissiest steerers steerest stefesti sterrett sterritt steti stiffest stiffies stirrers stirrest streeter stresses t-series t-street teffites terester terestr- terriers terrifie territet testfire testiere testiest testitis testsite tirsitei titterer treefree treetise treittie tresette tretises tri-fest triester triftsee trisette trissett tsiistre tsrister