Word: anw

Pronounce: an'-o

Strongs Number: G507

Orig: adverb from 473; upward or on the top:--above, brim, high, up. G473

Use: TDNT-1:376,63 Adverb

Heb Strong:

1) up, upwards, above, on high
2) of the quarters of the heaven, northward
3) of countries, inland, up from the coast
4) of time, formerly
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In Ga 4:26 the word could refer to either place or time, (i.e. place-the Jerusalem which is above-in the heavens, or time-the eternal Jerusalem which preceded the earthly one)