\:~ (# ; {.)/. ~ ;:    t
⍒ ⍨ (⍴{⍺⍵}↑)Key⍨ words t

sortd ← {⍵⌷⍨⊂⍒⍕⊃¨↓[0]⍵}  ⍝ ⍒⍨
Key   ← {⊃⍺⍺¨(↓(∪i)∘.=i←⍺⍳⍺)⌿¨⊂⍵}
words ← {1↓¨(1+' '=⍵)⊂⍵}
wfreq ← {sortd (⍴{⍺⍵}↑)Key⍨ words ⍵}

   disp wfreq t
┌→───┬────┐
↓1992│the │
├~──→┼───→┤
│1259│ of │
├~──→┼───→┤
│1021│and │
├~──→┼───→┤
│836 │your│
├~──→┼───→┤
│825 │ to │
├~──→┼───→┤
│802 │ my │
├~──→┼───→┤
  ...

wfreq ← {sortd (⍴{⍺⍵}↑)Key⍨ words ⍵}
wf    ← sortd ∘ ((⍴{⍺⍵}↑)Key⍨) ∘ words

   (wfreq ≡ wf) t
1