Strong's G175 — ἄκαρπος (adjective)
akarpos (ak'-ar-pos) adj.
1. barren
{literally or figuratively}
[from G1 (as a negative particle) and G2590]
KJV: without fruit, unfruitful 
Root(s): G1, G2590 
Hebrew root: καρπός
Occurrences: 7