0303.  Strong's Dictionary Study

0303. ana {an-ah'}; a primary preposition and adverb; properly, up; but (by extension) used (distributively) severally, or (locally) at (etc.): --and, apiece, by, each, every (man), in, through. In compounds (as a prefix) it often means (by implication) repetition, intensity, reversal, etc.[ql

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