Solutions :

3-letter words (1 point): 34

AIL; AIR; ANA; ANT; ARC; ARE; CAA; CAN; CAR; ELL; ERA; ERN; FAA; FAN; FAR; FAT; ILL; IRE; LEI; LIE; LUV; NAT; RAI; RAN; REI; RIA; TAN; TAV; ULE; UTA; UTU; UVA; VAN; VAT.

4-letter words (1 point): 45

ACRE; AFAR; AIRN; ANTA; ARIA; ARIL; ARLE; ARNA; CANT; CARE; CARL; CARN; CIEL; CILL; CIRE; CIRL; CRAN; ERIC; FAAN; FARE; FARL; ILIA; LEIR; LIAR; LIER; LIRA; LIRE; NAIL; NARC; NARE; RAIL; RANA; RANT; RIEL; RILE; RILL; TANA; TULE; ULNA; ULVA; VANT; VATU; VLEI; VRIL; VULN.

5-letter words (2 points): 22

AFARA; AREIC; ARIEL; CAIRN; CARLE; ELVAN; ERICA; FARCI; FARLE; ILIAC; ILLER; LIANA; NACRE; NAIRA; NARIC; RAILE; RELIC; RIANT; RILLE; TULLE; ULNAR; VRAIC.

6-letter words (3 points): 7

ARCANA; ARILLI; CAILLE; CRIANT; FARCIE; NAILER; ULNARE.

7-letter words (7 points): 3

FAVRILE; RELIANT; ULNARIA.