Solutions :

3-letter words (1 point): 32

EEL; EEN; ELL; ENE; EON; ERE; ERN; ILL; INN; LEE; LEI; LEP; LOP; LOR; NEE; NEP; NIE; NON; NOR; OLE; ONE; OPE; PEE; PEN; PER; POL; PRE; REE; REN; REO; REP; ROE.

4-letter words (1 point): 49

EINE; ENOL; ERNE; JELL; JILL; LEEP; LEER; LENO; LERE; LERP; LILO; LONE; LOPE; LORN; NEEP; NENE; NEON; NINE; NOEL; NOLE; NOLL; NONE; NONI; NOPE; ONER; ONIE; OPEN; PEEL; PEEN; PEER; PELE; PELL; PENE; PENI; PEON; PERE; PERN; POLE; POLL; PONE; PORN; PREE; REEL; REEN; REPO; ROLE; ROLL; RONE; ROPE.

5-letter words (2 points): 26

ELOPE; ENROL; ILLER; INNER; JELLO; LEONE; LEPER; LONER; LOPER; NEPER; NINON; OLEIN; OLLER; PELON; PENIE; PENNE; PENNI; POLER; POLJE; PREEN; RENIN; RENNE; REPEL; RONIN; RONNE; ROPER.

6-letter words (3 points): 15

ELOPER; ENROLL; NIELLI; NIELLO; OLEINE; PENNON; PEREON; POLLEE; POLLEN; POLLER; REPOLL; REPONE; ROLLER; RONNEL; RONNIE.

7-letter word (7 points): 1

LEONINE.

8-letter word (11 points): 1

REENROLL.