Strong's G449 — ἄνιπτος (adjective)
aniptos (an'-ip-tos) adj.
1. uncleansed
2. (ceremonially) unwashed
[from G1 (as a negative particle) and a presumed derivative of G3538]
KJV: unwashen 
Root(s): G1, G3538 
Hebrew root: νίπτω
Occurrences: 2