hos (Greek #3739)
the relatively (sometimes demonstrative) pronoun, who, which, what, that
KJV usage: one, (an-, the) other, some, that, what, which, who(-m, -se), etc. See also 3757.
Pronounce: hos
Origin: ἥ (hay), and neuter ὅ (ho) probably a primary word (or perhaps a form of the article 3588)
latreuo (Greek #3000)
to minister (to God), i.e. render religious homage
KJV usage: serve, do the service, worship(-per).
Pronounce: lat-ryoo'-o
Origin: from λάτρις (a hired menial)