Solutions :

3-letter words (1 point): 34

EMS; ENE; ENS; ESS; EST; GIO; GIS; ISM; LEP; LES; LIG; LIS; LOG; MEN; MES; MET; MIG; MIL; MIS; NEP; NET; OIL; OLM; PEN; PES; PET; PSI; PST; SEL; SEN; SET; SIM; TEN; TES.

4-letter words (1 point): 57

ENES; ESNE; ESSE; ESTS; GILT; GISM; GIST; GLIM; GOLP; LENS; LEPS; LESS; LEST; LIGS; LIME; LISP; LIST; LOGS; MENE; MESS; METS; MIGS; MILO; MILS; MILT; MISE; MISS; MIST; NEPS; NESS; NEST; NETS; OILS; OLMS; OLPE; PENE; PENS; PEST; PETS; PLIM; PSST; SEMI; SENE; SENS; SEPS; SESS; SILO; SILT; SLIM; SLOG; SPET; STEM; STEN; STEP; TEMS; TENE; TENS.

5-letter words (2 points): 30

ESNES; ESSES; GILTS; GLIME; GLIMS; GOLPE; GOLPS; LENES; LENSE; LESTS; LIMEN; LIMES; LISPS; MENES; MESNE; MILTS; NESTS; OLPES; PENES; PESTS; PLIMS; SENSE; SENSI; SILTS; SLIME; SLIMS; SLOGS; SPETS; STEPS; TENES.

6-letter words (3 points): 18

GLIMES; GOLPES; LESSEN; LIMENS; LISSES; LISTEN; MESNES; MESSES; MISPEN; MISSEL; MISSES; NESSES; OILMEN; PENSIL; PLISSE; SEPSES; SLIMES; SPENSE.

7-letter words (7 points): 4

GLISTEN; PENSILS; PLISSES; SEMILOG.