heos (Greek #2193)
a conjunction, preposition and adverb of continuance, until (of time and place)
KJV usage: even (until, unto), (as) far (as), how long, (un-)til(-l), (hither-, un-, up) to, while(-s).
Pronounce: heh'-oce
Origin: of uncertain affinity
pas (Greek #3956)
apparently a primary word; all, any, every, the whole
KJV usage: all (manner of, means), alway(-s), any (one), X daily, + ever, every (one, way), as many as, + no(-thing), X thoroughly, whatsoever, whole, whosoever.
Pronounce: pas
Origin: including all the forms of declension