Solutions :

3-letter words (1 point): 53

ACH; ALE; ALT; ATE; CAD; CAG; CAT; CHE; DAE; DAG; DAK; DAL; EAT; ELD; ELT; EON; ERN; ETA; GAD; GAE; GAL; GAT; HEN; HER; HET; KAE; KAT; LAC; LAD; LAG; LAT; LAX; LEA; LET; NET; NOT; NOX; ONE; REH; REN; REO; RET; TAD; TAE; TAG; TAK; TAX; TEA; TEL; TEN; TET; TOE; TON.

4-letter words (1 point): 61

ACHE; AEON; ALTO; AXON; CATE; CHER; CLAD; CLAG; CLAT; DALE; DALT; DATE; DATO; EACH; GAEN; GALE; GATE; HEAD; HEAL; HEAT; HELD; HENT; HERL; HERN; KALE; LAER; LATE; LEAD; LEAK; LEAT; LEHR; LENO; LENT; NEAL; NEAT; NOEL; NOTA; NOTE; ONER; READ; REAK; REAL; RENT; RHEA; TACH; TAEL; TALC; TALE; TEAD; TEAK; TEAL; TEAT; TEHR; TELA; TELD; TELT; TENT; TERN; TOEA; TONE; TRET.

5-letter words (2 points): 32

ALERT; ALTER; ATONE; AXONE; CATER; CAXON; CHEAT; CHELA; CHERT; CLEAT; DATER; GATER; HEALD; LATEN; LATER; LEACH; LENTO; NOTAL; NOTER; NOXAL; OXTER; REACH; RELAX; RETAG; RETAX; TACHE; TALER; TAXON; TEACH; TONER; TREAD; TREAT.

6-letter words (3 points): 7

ALTERN; ATONER; CLAXON; DALTON; LATENT; RENTAL; TALENT.

7-letter word (7 points): 1

TRENTAL.