Solutions :

3-letter words (1 point): 38

AHI; ALP; AMI; AMP; APE; EEN; ENE; ERN; HAM; HAP; HIM; IMP; IRE; LAH; LAM; LAP; LAV; MAL; MAP; MEE; MEN; MIR; NEE; NEP; PAH; PAL; PAM; PAV; PEE; PEN; PER; PHI; REE; REM; REN; REP; REX; RIM.

4-letter words (1 point): 29

AMEN; AMIR; APER; APEX; EMIR; EPHA; ERNE; HAME; HIRE; LAME; LAMP; MENE; MERI; MIHA; MIRE; NEEM; NEEP; NEMA; NEMN; NENE; PEEN; PENE; PERI; PERM; PERN; REEN; RIMA; RIME; VAMP.

5-letter words (2 points): 8

AMENE; ENEMA; HIREE; LAMER; MIREX; REMAP; REPLA; RHIME.

6-letter words (3 points): 4

ALPEEN; HAMPER; LAMPER; VAMPER.

7-letter words (7 points): 2

EXEMPLA; LAMPERN.