fiendful

From fiend +‎ -ful.

fiendful (comparative more fiendful, superlative most fiendful)

1. Full of fiendish arts or spirit.
   • 1589–1592 (date written), Ch[ristopher] Marl[owe], The Tragicall History of D. Faustus. […], London: […] V[alentine] S[immes] for Thomas Bushell, published 1604, →OCLC, signature [F3], recto:

     Fauſtus is gone, regard his helliſh fall, / Whoſe fiendful fortune may exhort the wiſe, / Onely to wonder at vnlawful things, […]

• fiendfully

• “fiendful”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.