diff --git a/HISTORY.md b/HISTORY.md
index 5e006bd9..58baf9c6 100755
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -16,6 +16,9 @@
     * German
     * Turkish
 
+### 2021-01-30
+* threads, objects, lists: renamed experimental "rotate" primitive into "transpose"
+
 ### 2021-01-29
 * threads, objects: new experimental "rotate (list)" primitive relabelling option for "all but first"
 * threads, objects: removed previous experimental "column" and "width" primitives again
diff --git a/snap.html b/snap.html
index 8c3944a9..e902ea1f 100755
--- a/snap.html
+++ b/snap.html
@@ -9,11 +9,11 @@
         <script src="src/symbols.js?version=2020-10-07"></script>
         <script src="src/widgets.js?version=2021-01-05"></script>
         <script src="src/blocks.js?version=2020-12-22"></script>
-        <script src="src/threads.js?version=2021-01-29"></script>
-        <script src="src/objects.js?version=2021-01-29"></script>
+        <script src="src/threads.js?version=2021-01-30"></script>
+        <script src="src/objects.js?version=2021-01-30"></script>
         <script src="src/gui.js?version=2021-01-21"></script>
         <script src="src/paint.js?version=2020-05-17"></script>
-        <script src="src/lists.js?version=2021-01-29"></script>
+        <script src="src/lists.js?version=2021-01-30"></script>
         <script src="src/byob.js?version=2020-12-22"></script>
         <script src="src/tables.js?version=2020-10-06"></script>
         <script src="src/sketch.js?version=2020-07-13"></script>
diff --git a/src/lists.js b/src/lists.js
index 87dd0ba9..6290d6b6 100644
--- a/src/lists.js
+++ b/src/lists.js
@@ -63,7 +63,7 @@ MorphicPreferences, TableDialogMorph, SpriteBubbleMorph, SpeechBubbleMorph,
 TableFrameMorph, TableMorph, Variable, isSnapObject, Costume, contains, detect,
 ZERO, WHITE*/
 
-modules.lists = '2021-January-29';
+modules.lists = '2021-January-30';
 
 var List;
 var ListWatcherMorph;
@@ -101,7 +101,7 @@ var ListWatcherMorph;
 
     conversion:
     -----------
-    rotated()               - answer a 2D list with rows turned into columns
+    transpose()             - answer a 2D list with rows turned into columns
     asArray()               - answer me as JavaScript array, convert to arrayed
     itemsArray()            - answer a JavaScript array shallow copy of myself
     asText()                - answer my elements (recursively) concatenated
@@ -376,10 +376,10 @@ List.prototype.version = function (startRow, rows, startCol, cols) {
 
 // List conversion:
 
-List.prototype.rotated = function () {
+List.prototype.transpose = function () {
     // answer a 2D list where each item has turned into a row,
-    // convert orphaned items into lists,
-    // fill ragged columns with orphaned values
+    // convert atomic items into lists,
+    // fill ragged columns with atomic values, if any, or empty cells
     var col, src, i, item,
         width = 1,
         len = this.length(),
@@ -391,12 +391,12 @@ List.prototype.rotated = function () {
         width = Math.max(width, item instanceof List ? item.length() : 0);
     }
 
-    // convert orphaned items into rows
+    // convert atomic items into rows
     src = this.map(row =>
         row instanceof List ? row : new List(new Array(width).fill(row))
     );
 
-    // define the mapper funciton
+    // define the mapper function
     col = (tab, c) => tab.map(row => row.at(c));
 
     // create the transform
diff --git a/src/objects.js b/src/objects.js
index 265a8177..c1e5d89f 100644
--- a/src/objects.js
+++ b/src/objects.js
@@ -84,7 +84,7 @@ BlockEditorMorph, BlockDialogMorph, PrototypeHatBlockMorph,  BooleanSlotMorph,
 localize, TableMorph, TableFrameMorph, normalizeCanvas, VectorPaintEditorMorph,
 AlignmentMorph, Process, WorldMap, copyCanvas, useBlurredShadows*/
 
-modules.objects = '2021-January-29';
+modules.objects = '2021-January-30';
 
 var SpriteMorph;
 var StageMorph;
@@ -1323,10 +1323,10 @@ SpriteMorph.prototype.initBlocks = function () {
             category: 'lists',
             spec: 'all but first of %l'
         },
-        reportTableRotated: {
+        reportTranspose: {
             type: 'reporter',
             category: 'lists',
-            spec: 'rotate %l'
+            spec: 'transpose %l'
         },
         reportListLength: {
             type: 'reporter',
@@ -1575,6 +1575,10 @@ SpriteMorph.prototype.initBlockMigrations = function () {
             selector: 'doSetGlobalFlag',
             inputs: [['turbo mode']],
             offset: 1
+        },
+        reportTableRotated: {
+            selector: 'reportTranspose',
+            offset: 0
         }
     };
 };
@@ -1716,9 +1720,9 @@ SpriteMorph.prototype.blockAlternatives = {
     doHideVar: ['doShowVar'],
 
     // lists
-    reportCDR: ['reportTableRotated', 'reportListLength'],
-    reportTableRotated: ['reportCDR', 'reportListLength'],
-    reportListLength: ['reportTableRotated', 'reportCDR'],
+    reportCDR: ['reportTranspose', 'reportListLength'],
+    reportTranspose: ['reportCDR', 'reportListLength'],
+    reportListLength: ['reportTranspose', 'reportCDR'],
 
     // HOFs
     reportMap: ['reportKeep', 'reportFindFirst'],
diff --git a/src/threads.js b/src/threads.js
index e604edce..bb5f9457 100644
--- a/src/threads.js
+++ b/src/threads.js
@@ -61,7 +61,7 @@ StageMorph, SpriteMorph, StagePrompterMorph, Note, modules, isString, copy, Map,
 isNil, WatcherMorph, List, ListWatcherMorph, alert, console, TableMorph, BLACK,
 TableFrameMorph, ColorSlotMorph, isSnapObject, newCanvas, Symbol, SVG_Costume*/
 
-modules.threads = '2021-January-29';
+modules.threads = '2021-January-30';
 
 var ThreadManager;
 var Process;
@@ -2008,11 +2008,9 @@ Process.prototype.reportItems = function (indices, list) {
 
 // Process - experimental tabular list accessors
 
-Process.prototype.reportTableRotated = function (list) {
-    // experimental and probably controversial as a primitive,
-    // because it's so nice and easy to write in Snap!
+Process.prototype.reportTranspose = function (list) {
     this.assertType(list, 'list');
-    return list.rotated();
+    return list.transpose();
 };
 
 // Process - other basic list accessors