Abbott-Smith Manual Greek Lexicon
ῥυπόω (G4510)
1 * ῥυπόω , -ῶ ( ῥύπος ), to make filthy : Re 22:11 Rec. (AV, tr. as = ῥυπάω , to be filthy ).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain
Strong's G4510 · Greek
ῥυπαίνω
rhupoo · rhoo-po'-o
from 4509; to soil, i.e. (intransitively) to become dirty (morally)