Firen-cræft

According to the Old English Dictionary:

es;

firen-cræft

m. A sinful craft, wickedness; scĕlesta ars, nēquĭtia UNCERTAIN :-- Hí Dryhtnes ǽ feódon þurh firencræft they hated the Lord's law in their wickedness, Exon. 66a; Th. 243, 21; Jul. 14. firen-cræft