bcos bzang byed

'correcting and spoiling', altered or spoiled, alteration; adulterate; alter, modify, correct [RY]

bcos bslad med pa (un)contrived and (un)corrupted/ (un)distorted; (without) contrivance and/ or contamination/ tampering [RB]

fiddled with, tampered with [RY]

correcting and modifying, corrected [JV]

1) [contrived] alteration; 2) [spoil in an] attempt to correct, improve, alter; 3) altered; 4) spoiled [IW]

correcting and modifying, corrected, modification or adulteration [JV]