Solutions :

3-letter words (1 point): 72

AAH; AAS; AHA; AIA; AIN; AIS; AIT; ANE; ANI; ANT; AWA; AWE; AWN; EAN; EAS; EAT; EVO; HAE; HAN; HAS; HAT; HAW; HOE; HOW; ITA; NAE; NAH; NAS; NAT; NAW; NEP; NEW; NIE; NIP; NIS; NIT; OWE; OWN; PEA; PEN; PEW; PIE; PIN; PIT; SAE; SAI; SAN; SAT; SAW; SIN; SIT; TAE; TAI; TAN; TAS; TAW; TIN; TIP; TIS; VIE; VIN; VOE; VOW; WAE; WAI; WAN; WAS; WAT; WEN; WHA; WHO; WOE.

4-letter words (1 point): 61

AIAS; AINE; ANEW; ANIS; ANTI; EINA; HAEN; HAIN; HANT; HOVE; HOWE; HWAN; INIA; INTI; ITAS; NEAT; NEVI; NINE; OVEN; PEAN; PEAS; PEAT; PEIN; PENI; PENT; PINA; PINE; PINT; PITA; SAIN; SANE; SANT; SATI; SAWN; SINE; TAHA; TAIN; TAIS; TANE; TAWA; TINE; TIPI; VEIN; VENA; VENT; VIEW; VINA; VINE; VINT; WAIN; WAIS; WAIT; WANE; WANT; WEAN; WENA; WENT; WEPT; WHAE; WHAT; WOVE.

5-letter words (2 points): 29

ANTIS; AWAIT; ENTIA; HAINT; HOVEA; HOVEN; INEPT; INTIS; NAEVI; NATIS; NEPIT; OVINE; PENIS; PINAS; PINTA; PITAS; SAINE; SAINT; SATIN; SAWAH; SINEW; TAHAS; TAWAI; TAWAS; TINEA; VENIN; VINAS; VINEW; WOVEN.

6-letter words (3 points): 12

HATPIN; HOVEAS; INVENT; INWOVE; ISATIN; PINTAS; PTISAN; TAENIA; TAWAIS; TAWHAI; TINEAS; TISANE.

7-letter words (7 points): 7

ASININE; ENTASIA; INVENIT; INWOVEN; ISATINE; TAENIAS; TAWHAIS.