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
esto (Greek #2077)
be thou; also ἔστωσαν (es'-to-san), third person of the same let them be
KJV usage: be.
Pronounce: es'-to
Origin: second person singular present imperative of 1510