diff --git a/arvo/hoon.hoon b/arvo/hoon.hoon
index ba65fc621f..27ac472da3 100644
--- a/arvo/hoon.hoon
+++ b/arvo/hoon.hoon
@@ -1075,6 +1075,33 @@
 ::                section 2cD, insecure hashing         ::
 ::
 ++  fnv  |=(a=@ (end 5 1 (mul 16.777.619 a)))           ::  FNV scrambler
+++  mur
+  ~/  %mur
+  |=  [key=@ syd=@]
+  ?>  (lte (met 5 syd) 1)
+  =+  ^=  row
+      |=  [a=@ b=@] 
+      (con (end 5 1 (lsh 0 a b)) (rsh 0 (sub 32 a) b))
+  =+  mow=|=([a=@ b=@] (end 5 1 (mul a b)))
+  =+  len=(met 5 key)
+  =-  =.  goc  (mix goc len)
+      =.  goc  (mix goc (rsh 4 1 goc))
+      =.  goc  (mow goc 0x85eb.ca6b)
+      =.  goc  (mix goc (rsh 0 13 goc))
+      =.  goc  (mow goc 0xc2b2.ae35)
+      (mix goc (rsh 4 1 goc))
+  ^=  goc
+  =+  [inx=0 goc=syd]
+  |-  ^-  @
+  ?:  =(inx len)  goc
+  =+  kop=(cut 5 [inx 1] key)
+  =.  kop  (mow kop 0xcc9e.2d51)
+  =.  kop  (row 15 kop) 
+  =.  goc  (mix kop goc)
+  =.  goc  (row 13 goc)
+  =.  goc  (end 5 1 (add 0xe654.6b64 (mul 5 goc)))
+  $(inx +(inx))
+::
 ++  mug                                                 ::  31bit nonzero FNV1a
   ~/  %mug
   |=  a=*
diff --git a/arvo/zuse.hoon b/arvo/zuse.hoon
index d640e06795..0ad2f74694 100644
--- a/arvo/zuse.hoon
+++ b/arvo/zuse.hoon
@@ -1046,7 +1046,7 @@
   ^-  ankz
   ^$(p ank)
 ::
-++  ze  !:
+++  ze
   |_  [lim=@da dome rang]
   ++  zoal                                              ::  make yaki
     |=  [p=(list tako) q=(map path lobe) t=@da]
@@ -1356,7 +1356,7 @@
       $(gud (~(put in gud) tek), unk bun)
     $(unk bun)
   ::
-  ++  zeas  !:                                        ::  merge points fast
+  ++  zeas                                            ::  merge points fast
     |=  [p=yaki q=yaki]                               ::  (future zeal)
     ^-  (set yaki)                                    ::  zear still uses zule
     %-  zear                                          ::  this is test-only
@@ -1374,7 +1374,7 @@
       (~(uni in u) (zeaz v))
     $(u (~(uni in u) (zeaz v)), s (zeat s.qez), t (zeat t.qez))
   ::
-  ++  zeaz  !:
+  ++  zeaz 
     |=  qez=(set tako)
     ^-  (set yaki)
     %-  sa  %+  turn  (~(tap in qez) ~)