Solutions :

3-letter words (1 point): 38

AXE; DEE; DEL; DEN; DEX; EEL; EEN; ELD; ELT; ENE; ETH; HEN; HET; HEX; HOT; HOW; LEA; LED; LEE; LEX; LOT; LOW; NED; NEE; NET; NTH; OLD; OLE; OWT; TEE; TEN; THE; THO; TOT; TOW; TWO; WHO; WOT.

4-letter words (1 point): 48

AXED; AXEL; BLED; BLEE; BLOT; BLOW; DEEN; DELE; DELO; DELT; DENE; DENT; EHED; ETHE; EXED; HEED; HEEL; HELD; HELE; HELO; HENT; HOLD; HOLE; HOLT; HOTE; LEED; LENT; LOTE; LOTH; LOWT; NEED; OHED; OLEA; TEEN; TENE; THEE; THEN; TOLD; TOLE; TOLT; TOTE; TOWT; UNTO; WHEE; WHEN; WHET; WHOT; WOLD.

5-letter words (2 points): 23

BLEED; BLENT; DENET; HELED; HELOT; HEXED; HOLED; HOTEN; LENTO; NEELD; NEELE; OLDEN; OLENT; TEENE; TENUE; THEED; THOLE; TOLED; UNETH; UNLED; WHEEL; WHEEN; WHOLE.

6-letter words (3 points): 10

ETHENE; EXEUNT; HEXENE; HOLDEN; NEEDLE; TEENED; THOLED; TOWHEE; UNHELE; UNTOLD.

7-letter word (7 points): 1

UNHELED.