Solutions :

3-letter words (1 point): 35

DEI; DEN; DIM; DIN; END; ENE; ENG; EON; ETH; GET; HEM; HEN; HET; IDE; INN; ION; MEN; MET; MID; NED; NET; NID; NIM; NOT; NTH; ONE; TED; TEG; TEN; TET; THE; TIE; TOE; TON; TOT.

4-letter words (1 point): 38

DENE; DENI; DENT; DINE; DING; DINT; ETEN; ETHE; HENT; HETE; INTI; INTO; MENE; MENO; MENT; METE; METH; MIND; MINE; MING; MINT; NENE; NEON; NETE; NIDE; NOTE; TEND; TENE; TENT; TETE; TETH; THEM; THEN; TIED; TOED; TOIT; TONE; TOTE.

5-letter words (2 points): 23

DENET; DENIM; DINGE; IDENT; INNED; MENED; MENTO; METED; MINED; MINGE; NOTED; ONNED; TENET; TENGE; TENNE; TENNO; TENTH; THEGN; THETE; TONED; TONNE; TOTED; TOTEM.

6-letter words (3 points): 15

DENNET; DENOTE; DETENT; ENTETE; ETHENE; HENNED; HENTED; INDENE; INDENT; INTENT; INTOED; INTONE; MINTED; TENTED; TOITED.

7-letter words (7 points): 4

DETENTE; ENTENTE; INTONED; TOTIENT.