ecter ceter etcer tecer cteer tceer ecetr ceetr eectr eectr ceetr ecetr etecr teecr eetcr eetcr teecr etecr cteer tceer ceter ecter tecer etcer ectre cetre etcre tecre ctere tcere ecrte certe ercte recte crete rcete etrce terce ertce retce trece rtece ctree tcree crtee rctee trcee rtcee ecert ceert eecrt eecrt ceert ecert ecret ceret ercet recet creet rceet eerct eerct erect reect erect reect ceret ecret creet rceet ercet recet eterc teerc eetrc eetrc teerc eterc etrec terec ertec retec treec rteec eertc eertc eretc reetc eretc reetc terec etrec treec rteec ertec retec ctere tcere cetre ectre tecre etcre ctree tcree crtee rctee trcee rtcee certe ecrte crete rcete ercte recte terce etrce trece rtece ertce retce
Note: these 'words' (valid or invalid) are all the permutations of the word ecter. These words are obtained by scrambling the letters in ecter.