Strong's #449: aniptos (pronounced an'-ip-tos)
from 1 (as a negative particle) and a presumed derivative of 3538; without ablution:--unwashen.
Thayer's Greek Lexicon:
̓́
aniptos
1) unwashed
Part of Speech: adjective
Relation: from G1 (as a negative particle) and a presumed derivative of G3538
Citing in TDNT: 4:947, 635
Usage:
This word is used 3 times:
Matthew 15:20: "a man: but to eat with unwashen hands defileth not a man."
Mark 7:2: "bread with defiled, that is to say, with unwashen, hands, they found fault."
Mark 7:5: "but eat bread with unwashen hands?"