USA - Official Scrabble Players Dictionary 6 (Merriam-Webster) 2018
Consonants only (using Y as a vowel)
BY
BYRL
BYRLS
BYS
CRY
CRYPT
CRYPTS
CYST
CYSTS
DRY
DRYLY
DRYS
FLY
FLYBY
FLYBYS
FLYSCH
FRY
GHYLL
GHYLLS
GLYCYL
GLYCYLS
GLYPH
GLYPHS
GYM
GYMS
GYP
GYPS
GYPSY
HWYL
HWYLS
HYMN
HYMNS
HYP
HYPS
LYCH
LYMPH
LYMPHS
LYNCH
LYNX
MY
MYC
MYCS
MYRRH
MYRRHS
MYRRHY
MYTH
MYTHS
MYTHY
NYMPH
NYMPHS
PLY
PRY
PSYCH
PSYCHS
PYGMY
PYX
RHYTHM
RHYTHMS
RYND
RYNDS
SCRY
SHY
SHYLY
SKRY
SKY
SLY
SLYLY
SPHYNX
SPRY
SPRYLY
SPY
STY
STYMY
SYLPH
SYLPHS
SYLPHY
SYN
SYNC
SYNCH
SYNCHS
SYNCS
SYNTH
SYNTHS
SYPH
SYPHS
SYZYGY
THY
THYMY
TRY
TRYST
TRYSTS
TYPP
TYPPS
TYPY
WHY
WHYS
WRY
WRYLY
WYCH
WYN
WYND
WYNDS
WYNN
WYNNS
WYNS
XYLYL
XYLYLS
XYST
XYSTS