DAFF
DAFFADOWNDILLY
DAFFED
DAFFIER
DAFFIES
DAFFIEST
DAFFILY
DAFFINESS
DAFFINESSES
DAFFING
DAFFINGS
DAFFODIL
DAFFODILLIES
DAFFODILLY
DAFFODILS
DAFFS
DAFFY
DAFT
DAFTAR
DAFTARS
DAFTER
DAFTEST
DAFTIE
DAFTIES
DAFTLY
DAFTNESS
DAFTNESSES

27 words start with DAF.