Unscrambling GREATLY gives 139 words. GREATLY is the longest, and GREATLY scores the most at 11 points.
No other single word uses all 7 letters of GREATLY. GREATLY has 7 letters: 2 vowels and 5 consonants, worth 11 points before any board bonuses.
7-letter words 1
6-letter words 6
argyle10elytra9gyrate10lyrate9realty9tergal7
5-letter words 29
aglet6agley9alert5alter5argle6artel5early8gater6gayer9glare6glary9grate6great6gyral9lager6large6later5layer8leary8lyart8ratel5regal6relay8retag6taler5targe6teary8terga6yager9
4-letter words 38
aery7ager5agly8arty7aryl7earl4egal5eyra7gale5gate5gear5gelt5geta5gley8grat5gray8grey8gyre8late4lear4lyre7rage5rale4rate4real4rely7tael4tale4tare4teal4tear4tela4tray7trey7tyer7tyre7yare7year7
3-letter words 51
age4ale3alt3are3art3ate3aye6ear3eat3era3erg4ert3eta3gae4gal4gar4gat4gay7gel4get4gey7gre4lag4lar3lat3lay6lea3leg4let3ley6lye6rag4rat3ray6reg4ret3rya6rye6tae3tag4tar3tea3teg4tel3try6tye6tyg7yar6yea6yer6yet6
2-letter words 14
ae2ag3al2ar2at2ay5el2er2et2la2re2ta2ya5ye5
Words are from our open word list and include some game-only words. Rude words are left out of this page; the unscrambler shows every valid word, lets you add blank tiles and filter by length.