Hebrew and Greek Strong's Dictionary with all the definitions plus combined with every place that word is used in the definitions.
Complete index of every word used in both the Hebrew and Greek Strong's Dictionary in English Word order.
Hebrew and Greek Expanded Dictionary
wilfully 0544 - apeitheo {ap-i-theh'-o}; from 0545; to disbelieve ({wilfully} and perversely): -- not believe, disobedient, obey not, unbelieving.
wilfully 1596 - hekousios {hek-oo-see'-ose}; adverb from the same as 1595; voluntarily: -- {wilfully}, willingly.