Solutions :

3-letter words (1 point): 53

ANE; ANN; ARE; AYE; CAA; CAY; EAN; EAR; EEL; EEN; EFT; ELL; ELT; ENE; ERA; ERN; EYE; FEE; FEN; FET; FEY; JAY; JEE; JET; LEA; LEE; LEP; LET; LEY; NAE; NAY; NEE; NEF; NEP; NET; NYE; PEE; PEN; PET; RAN; RAY; REE; REN; TEE; TEF; TEL; TEN; YAE; YAR; YEA; YEN; YEP; YET.

4-letter words (1 point): 54

AJEE; AREA; CYAN; EARN; EYEN; EYER; EYNE; FEEL; FEEN; FEER; FELL; FELT; FENT; JEEL; JEER; JELL; LEAN; LEAR; LEEP; LEER; LEET; LEFT; LENT; LEPT; NARE; NEAR; NEEP; NENE; PEEL; PEEN; PEER; PELL; PELT; PENE; PENT; RAYA; REAN; REEF; REEL; REEN; RENT; RENY; TEEL; TEEN; TEER; TELL; TENE; YAAR; YARE; YARN; YEAN; YEAR; YELL; YELT.

5-letter words (2 points): 18

ANENT; ARENE; FEYER; LEARN; LEEAR; PENNA; PENNE; RANEE; RAYNE; REEFY; RENAY; RENEY; RENNE; RENTE; TEENY; TENNE; YEARN; YENTE.

6-letter words (3 points): 9

FELLER; FENNEL; PENNAE; PENNER; RENNET; TELLEN; TELLER; TENNER; YELLER.

7-letter word (7 points): 1

CAYENNE.