hayer ahyer hyaer yhaer ayher yaher haeyr aheyr heayr ehayr aehyr eahyr hyear yhear heyar ehyar yehar eyhar ayehr yaehr aeyhr eayhr yeahr eyahr hayre ahyre hyare yhare ayhre yahre harye ahrye hraye rhaye arhye rahye hyrae yhrae hryae rhyae yrhae ryhae ayrhe yarhe aryhe rayhe yrahe ryahe haery ahery heary ehary aehry eahry harey ahrey hraey rhaey arhey rahey heray ehray hreay rheay erhay rehay aerhy earhy arehy raehy erahy reahy hyera yhera heyra ehyra yehra eyhra hyrea yhrea hryea rhyea yrhea ryhea herya ehrya hreya rheya erhya rehya yerha eyrha yreha ryeha eryha reyha ayerh yaerh aeyrh eayrh yearh eyarh ayreh yareh aryeh rayeh yraeh ryaeh aeryh earyh areyh raeyh erayh reayh yerah eyrah yreah ryeah eryah reyah
Note: these 'words' (valid or invalid) are all the permutations of the word hayer. These words are obtained by scrambling the letters in hayer.