Here is the complete set of proper words made by unscrambling MASSIVELY, listed clearly for a quick look at what the letters allow.
Words You Can Make from MASSIVELY
3-letter words
- AIL3
- AIM5
- AIS3
- ALE3
- ALS3
- AMI5
- ASS3
- AVE6
- AYE6
- AYS6
- ELM5
- ELS3
- EMS5
- ESS3
- ISM5
- IVY9
- LAM5
- LAS3
- LAV6
- LAY6
- LEA3
- LEI3
- LES3
- LEV6
- LEY6
- LIE3
- LIS3
- LYE6
- MAE5
- MAS5
- MAY8
- MEL5
- MES5
- MIL5
- MIS5
- MYS8
- SAE3
- SAL3
- SAY6
- SEA3
- SEI3
- SEL3
- SEV6
- SIM5
- SIS3
- SLY6
- VAS6
- VIA6
- VIE6
- VIM8
- VIS6
- YAM8
- YAS6
- YEA6
- YES6
4-letter words
- AILS4
- AIMS6
- ALES4
- ALMS6
- AMIE6
- AMYL9
- AYES7
- EASY7
- ELMS6
- EVIL7
- EYAS7
- ILEA4
- ISLE4
- ISMS6
- LAME6
- LAMS6
- LASE4
- LASS4
- LAVE7
- LAVS7
- LAYS7
- LEAS4
- LEIS4
- LESS4
- LEVA7
- LEVY10
- LEYS7
- LIES4
- LIME6
- LIMY9
- LIVE7
- LYSE7
- MAIL6
- MALE6
- MASS6
- MEAL6
- MESA6
- MESS6
- MILE6
- MILS6
- MISE6
- MISS6
- SAIL4
- SALE4
- SAME6
- SAVE7
- SAYS7
- SEAL4
- SEAM6
- SEAS4
- SEIS4
- SELS4
- SEMI6
- SIMA6
- SIMS6
- SLAM6
- SLAY7
- SLIM6
- VAIL7
- VALE7
- VASE7
- VEAL7
- VEIL7
- VELA7
- VIAL7
- VIES7
- VILE7
- VISA7
- VISE7
- YAMS9
- YEAS7
- YLEM9
5-letter words
- AISLE5
- ALIVE8
- AMISS7
- EMAIL7
- ESSAY8
- EVILS8
- ISLES5
- LAMES7
- LAVES8
- LEVIS8
- LIMES7
- LIMEY10
- LIVES8
- LYSES8
- LYSIS8
- LYSSA8
- MAILS7
- MALES7
- MASSY10
- MAVIS10
- MEALS7
- MEALY10
- MESAS7
- MESSY10
- MILES7
- MISSY10
- SAILS5
- SALES5
- SALMI7
- SALVE8
- SAMES7
- SAMEY10
- SAVES8
- SEALS5
- SEAMS7
- SEAMY10
- SEISM7
- SEMIS7
- SILVA8
- SISAL5
- SLAMS7
- SLAVE8
- SLAYS8
- SLIME7
- SLIMS7
- SLIMY10
- SMILE7
- VALES8
- VALSE8
- VASES8
- VEILS8
- VIALS8
- VISAS8
- VISES8
6-letter words
- AISLES6
- EASILY9
- EMAILS8
- LASSIE6
- LIMEYS11
- MEASLY11
- MESIAL8
- MISLAY11
- MISSAL8
- SALMIS8
- SALVES9
- SAMIEL8
- SILVAS9
- SLAVES9
- SLAVEY12
- SLIMES8
- SLIMSY11
- SMILES8
- SMILEY11
- VALISE9
- VALSES9
7-letter words
- AIMLESS9
- MASSIVE12
- MAVISES12
- MESSILY12
- MISLAYS12
- SAMIELS9
- SLAVEYS13
- SMILEYS12
- VALISES10
9-letter words
- MASSIVELY17
The list above contains all words you can make from MASSIVELY sorted by length. In total, it yields 212 valid words.