Wrong or imperfect registration or alignment; (Printing) the inaccurate positioning of printed matter on a sheet, especially the misalignment of two or more colours in relation to each other.
1930s; earliest use found in National Lithographer. From mis- + register.
To cause to have an incorrect register; to register wrongly or imperfectly. Usually in passive.
1920s; earliest use found in The Indianapolis Star. From mis- + register.