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
lithos (Greek #3037)
a stone (literally or figuratively)
KJV usage: (mill-, stumbling-)stone.
Pronounce: lee'-thos
Origin: apparently a primary word