remove digraphs

[ktye]

             now         new

each         +'x        same
over         +/x        same
scan         +\x        same

each2       x+'y        same
over-init   x+/y       +/x,y
scan-init   x+\y       +\x,y

each-n    F'[..]        same (n>2)
over-n    F/[..]        same (n>2)
scan-n    F\[..]        same (n>2)

each-prior  -':x         ???
fixedpoint  f/:x         f/x (monadic)
fixedscan   f\:x         f\x
transition 0{L[x;y]}\x L\0,x

each-left  x+\:y        x+\y
each-right x+/:y        x+/y

join        x/:y         c/y (chars only)
split       x\:y         c\y (chars only)
decode      x//y         n/y (numbers)
encode      x\\y         n\y (numbers)

div          x\y         y%x (int remains)
mod          x/y         x!y (i-atom only)
ndo        f n/x        retire

bin          x'y        same
lin        x y'z        {..}
 in         x':y        a?v (remove shuffle/deal)

deal/shuffle n?v      v(n?#v)

each-prior: maybe
sqrt          %x      sqrt x (verb-code)
rotate-fill  n/a          %x  %1 2 3 /0 1 2
prior       -':x        x-%x

or define prior:{[f;x;x0]f[x;-1_x0,x]}