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
sklerotes (Greek #4643)
callousness, i.e. (figuratively) stubbornness
KJV usage: hardness.
Pronounce: sklay-rot'-ace