ho (Greek #3588)
the definite article; the (sometimes to be supplied, at others omitted, in English idiom)
KJV usage: the, this, that, one, he, she, it, etc.
Pronounce: ho
Origin: ἡ (hay), and the neuter τό (to) in all their inflections
sklerokardia (Greek #4641)
hard-heartedness, i.e. (specially), destitution of (spiritual) perception
KJV usage: hardness of heart.
Pronounce: sklay-rok-ar-dee'-ah
Origin: feminine of a compound of 4642 and 2588