The phrase "Washed by the Blood" of may appear in your hymnal, but it doesn't appear in your Bible.
A primary verb; to "loosen" (literally or figuratively) -- break (up), destroy, dissolve, (un-)loose, melt, put off.
NASB Word Usage
annuls (1), break (1), breaking (1), broke down (1), broken (4), destroy (2), destroyed (3),
loose (2), loosed (2), putting an end to (1), release (1), released (7), removed (1),
take off (1), unbind (1), untie (8), untied (1), untying (4). Revelation 1:5 And from Jesus Christ, who is the faithful witness, and the first begotten of the dead, and the prince of the kings of the earth. Unto him that loved us, and washed us from our sins in his own blood,
No matter how you look at it, it was the blood that removed our sins from us. Play silly word games if you want. It doesn’t change what the scriptures say. The only revisions of the Bible that don’t render it “wash” are the new “per-versions” (http://www.av1611.org/wash.html). The older versions used “washed” for a reason. I’ll keep looking.