Index: graphspell-js/ibdawg.js
==================================================================
--- graphspell-js/ibdawg.js
+++ graphspell-js/ibdawg.js
@@ -364,11 +364,11 @@
                 for (let sTail of this._getTails(iAddr)) {
                     oSuggResult.addSugg(sNewWord+sTail);
                 }
                 return;
             }
-            else if (this.isValid(sRemain)) {
+            else if (this.isValid(sRemain) && oSuggResult.sWord.startsWith(sNewWord)) {
                 oSuggResult.addSugg(sNewWord+" "+sRemain);
             }
         }
         if (nDist > oSuggResult.nDistLimit) {
             return;

Index: graphspell/ibdawg.py
==================================================================
--- graphspell/ibdawg.py
+++ graphspell/ibdawg.py
@@ -327,11 +327,11 @@
             if not sRemain:
                 oSuggResult.addSugg(sNewWord, nDeep)
                 for sTail in self._getTails(iAddr):
                     oSuggResult.addSugg(sNewWord+sTail, nDeep)
                 return
-            elif self.isValid(sRemain):
+            elif self.isValid(sRemain) and oSuggResult.sWord.startswith(sNewWord):
                 oSuggResult.addSugg(sNewWord+" "+sRemain)
         if nDist > oSuggResult.nDistLimit:
             return
         cCurrent = sRemain[0:1]
         for cChar, jAddr in self._getCharArcs(iAddr):