King James Bible Dictionary

properly firm that is (figuratively) trustworthy; adverbially surely (often as interjection so be it)

1. firm

a. metaph. faithful

2. verily, amen

a. at the beginning of a discourse - surely, truly, of a truth

b. at the end - so it is, so be it, may it be fulfilled. It was a custom, which passed over from the synagogues to the Christian assemblies, that when he who had read or discoursed, had offered up solemn prayer to God, the others responded Amen, and thus made the substance of what was uttered their own. The word "amen" is a most remarkable word. It was transliterateddirectly from the Hebrew into the Greek of the New Testament, theninto Latin and into English and many other languages, so that it ispractically a universal word. It has been called the best known wordin human speech. The word is directly related -- in fact, almostidentical -- to the Hebrew word for "believe" (amam), or faithful.Thus, it came to mean "sure" or "truly", an expression of absolutetrust and confidence. -- HMM