By cheating with my word finder, which gets its words from the official Scrabble player's word list, I come up with the following 482 words which have at least 6 letters. The words are sorted first by their length (longest to shortest), and then alphabetically among each word length. The list is presented from top-to-bottom and then left-to-right.
Show Spoiler DORMITORIES MOTORISE DORMERS ROWDIER WOODIES MISTER ROSTER TRIERS
MITERWORTS MOTORIST DOTIEST ROWDIES WORDIER MITERS ROTORS TRIMER
MITREWORTS ODOMETRY DOTTERS ROYSTER WORMERS MITIER ROTTED TRIODE
SERVOMOTOR OMITTERS DOTTIER SEMIDRY WORMIER MITRED ROTTER TRIOSE
VOMITORIES OTIOSITY DOWRIES SOOTIER WORRIED MITRES ROTTES TRISTE
DISTORTER OTITIDES DRIVERS SORRIER WORRIER MODEST ROVERS TRITER
DIVERSITY OVERSTIR DROVERS SORTIED WORRIES MOIETY ROWERS TRIVET
DORMITORY OVERTRIM EDITORS STEROID WORRITS MOIRES SITTER TROVER
DOSIMETRY OVERWORD EROTISM STERTOR WORSTED MOORED SMITER TROVES
EMOTIVITY REDROOTS IVORIES STIMIED WRITERS MOOTED SODOMY TROWED
EROSIVITY REMITTOR METRIST STIRRED DEMITS MOOTER SOMITE TRYSTE
IDEOMOTOR RESTROOM MIRIEST STIRRER DERMIS MOROSE SOOTED TWIERS
IODOMETRY REVISORY MIRRORS STORIED DERRIS MORRIS SORDOR TWISTY
MITERWORT RIDOTTOS MISDOER STORMED DEVOIR MORROS SORROW TWYERS
MITREWORT RIMOSITY MISDREW STRIDER DEWORM MORROW SORTED VERISM
MOORWORTS ROOMIEST MISEDIT STRIDOR DIMERS MOTETS SORTER VERIST
MOTORISED ROOTIEST MISTIER STRIVED DIMITY MOTIVE SORTIE VERITY
ORRISROOT ROOTWORM MISWORD STRIVER DIMWIT MOTORS SOTTED VERMIS
OSTEOTOMY ROSEROOT MISWRIT STROWED DIREST MOTTES SOVIET VESTRY
OVERSTORY ROSEWOOD MITIEST STROYED DITTOS MOTTOS STIVER VIDEOS
OVERTIMID ROWDIEST MODESTY STROYER DIVERS MOVERS STORED VIREOS
OVERTRIMS ROWDYISM MODISTE STYMIED DIVERT MOVIES STORER VIROID
OVERWORDS SERVITOR MOIDORE SWOTTED DIVEST MOWERS STOREY VOIDER
REMITTORS SODOMITE MOISTER SWOTTER DIVOTS OOTIDS STORMY VOMERS
ROOTWORMS SORORITY MOODIER TERMORS DORIES ORDERS STOVER VOMITO
STOREROOM SORROWED MOORIER TERRITS DORMER ORMERS STOWED VOMITS
TERRITORY SORROWER MOOTERS TERRORS DORMIE OROIDE STRIDE VOTERS
TERRORISM STORMIER MORROWS TIDIERS DORSER ORRERY STRIVE VOWERS
TERRORIST TIMIDEST MORTISE TIDIEST DOTERS OSTOMY STRODE VROOMS
TOMORROWS TOMORROW MOTIVED TIMIDER DOTIER OTIOSE STROVE WEIRDO
TORRIDEST TOROSITY MOTIVES TOOTERS DOTTER OTITIS STYMIE WEIRDS
TORRIDITY TORRIDER MOTORED TOOTSIE DOWERS OTTERS SWIVED WEIRDY
TRIMOTORS TORTOISE MOTTOES TOREROS DOWERY OVERDO SWIVET WIDEST
WOODSTOVE TRIMOTOR MYOSOTE TOROIDS DOWSER OVOIDS TEIIDS WIRERS
WORMROOTS TWISTIER OMITTED TREMORS DRIERS OYSTER TERMOR WIRIER
WORRISOME VOMITERS OMITTER TRIMERS DRIEST REMITS TERRIT WISDOM
DEMOTIST VOMITORY OROIDES TRIODES DRIVER RESORT TERROR WISTED
DERISORY WOODIEST OSTEOID TRISOME DRIVES RETORT TETRIS WITTED
DIORITES WOODSIER OVERDRY TRISOMY DROITS RETRIM TIDIER WIVERS
DIRTIEST WORDIEST REDROOT TRIVETS DROVER RETROS TIDIES WOODIE
DOOMIEST WORMIEST REMORID TROVERS DROVES REWORD TIMERS WOODSY
DOOMSTER WORMROOT RETORTS TRYSTED DROWSE RIDERS TITERS WOOERS
DROWSIER WORRIERS RETRIMS TRYSTER DROWSY RIMERS TITRES WORMED
ISOMETRY WORRITED RETWIST TWISTED DRYERS RIMIER TODIES WORMER
METRITIS WRISTIER REVISIT TWISTER DRYEST RIMOSE TOITED WORRIT
MIDSTORY DESTROY REVISOR TWOSOME EDITOR RIOTED TOOTED WORSER
MIDWIVES DEVISOR REWORDS VERISMO ERRORS RIOTER TOOTER WORSET
MIRRORED DEVOIRS RIDOTTO VIROIDS IDIOMS RITTER TOOTSY WOTTED
MISDRIVE DEWORMS RIMIEST VISITED IDIOTS RIVERS TORERO WRIEST
MISDROVE DIMWITS RIOTERS VISITER IMIDES RIVETS TORIES WRISTY
MISORDER DIORITE RISOTTO VISITOR IODISE RODEOS TOROID WRITER
MISWRITE DIRTIER RITTERS VISORED IODISM ROMEOS TOROSE WRITES
MISWROTE DIRTIES ROISTER VOIDERS IRIDES ROOMED TORRID WRYEST
MOIDORES DISROOT ROOMERS VOMITED IRISED ROOMER TORTES YIRRED
MOODIEST DISTOME ROOMIER VOMITER ISOMER ROOMIE TOTEMS YOWIES
MOORIEST DISTORT ROOMIES VOMITOS MERITS ROOSED TOTERS 0
MOORWORT DITSIER ROOSTED VROOMED METROS ROOSER TOWERS 0
MOROSITY DITTIES ROOSTER WEIRDOS MIRIER ROOTED TOWERY 0
MORTISED DIVERTS ROOTERS WIRIEST MIRROR ROOTER TOWIES 0
MORTISER DIVISOR ROOTIER WITTIER MISERY ROSERY TOYERS 0
MOTIVITY DOOMIER ROTTERS WOODIER MISTED ROSIER TREMOR 0