x1=s1 confuses the identity of x2=d1 as x3=s2=d2=m, a confusion under conditions x4=s3 by standard x5=s4; x1 mistakes x2 for x3.
Synonym: dubji'isre. The shortening mitsre is proposed to have the «sez-» meaning rather than the «maz-» meaning, unlike dubyfa'i (see dubdu'ofa'i, sezdu'ofa'i). See also: sezmitsre, mitsre, kaisre, dubju'o, dubyfa'i, mitfa'i, dumdu'o, sevzi, basti, kamdu'o.