Solutions :

3-letter words (1 point): 50

AGS; AIA; AIS; AIT; ATE; AWE; EAS; EAT; ELF; ELT; EST; ETA; EWE; EWT; FUG; GAE; GAS; ITA; ITS; LEA; LET; LEW; QAT; RET; REW; SAE; SAG; SAI; SAT; SAW; SEA; SEI; SIT; TAE; TAI; TAS; TAT; TAW; TEA; TEL; TEW; TIE; TIS; TWA; UGS; WAE; WAI; WAS; WAT; WET.

4-letter words (1 point): 54

AIAS; AITS; ASEA; EASE; EAST; EATS; ELTS; ETAS; ETAT; EWER; EWTS; FLEA; FLEW; FUGS; GAES; GAIT; GAST; ITAS; LEAS; LEAT; LETS; QATS; RETS; SATE; SATI; SITE; STAT; STAW; STEW; STIE; TAEL; TAIS; TAIT; TATE; TATS; TAWT; TEAS; TEAT; TIES; TREW; TWAE; TWAS; TWAT; WAIS; WAIT; WAQF; WASE; WAST; WATE; WATS; WELT; WERT; WETA; WETS.

5-letter words (2 points): 34

ASTER; EATER; ESTER; ETATS; FLEAS; GAITS; ISTLE; LEASE; LEAST; LEATS; REAST; REATE; REWET; SAWER; STATE; STREW; TAITS; TASTE; TATER; TATIE; TAWER; TAWTS; TEASE; TEATS; TEWEL; TREAT; TWATS; WAIST; WAITE; WAITS; WASTE; WATER; WELTS; WETAS.

6-letter words (3 points): 14

EASTER; ESTATE; GASTER; REWETS; STATER; STEWER; TASTER; TATIES; TATLER; TAWTIE; TREATS; TWAITE; WASTEL; WASTER.

7-letter words (7 points): 5

ESTREAT; GASTREA; RETASTE; WAISTER; WASTREL.

8-letter words (11 points): 2

TREATIES; TREATISE.