Strong’s Hebrew
H2019 — haphakpak
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
הֲפַכְפַּךְ
haphakpak — pronounced haf-ak-pak
by reduplication from 2015; very perverse:--froward. see H02015
1 occurrence in the KJV.
Proverbs 21:8
The way of man is froward and strange: but as for the pure, his work is right.