Index: gc_core/py/lang_core/gc_engine.py
==================================================================
--- gc_core/py/lang_core/gc_engine.py
+++ gc_core/py/lang_core/gc_engine.py
@@ -1168,12 +1168,15 @@
     dToken["lMorph"] = lMorph
     #print("DA:", dToken["sValue"], lMorph)
     return True
 
 
-def g_define_from (dToken, nLeft, nRight=None):
-    dToken["lMorph"] = _oSpellChecker.getMorph(dToken["sValue"][slice(nLeft, nRight)])
+def g_define_from (dToken, nLeft=None, nRight=None):
+    if nLeft is not None:
+        dToken["lMorph"] = _oSpellChecker.getMorph(dToken["sValue"][slice(nLeft, nRight)])
+    else:
+        dToken["lMorph"] = _oSpellChecker.getMorph(dToken["sValue"])
     return True
 
 
 #### GRAMMAR CHECKER PLUGINS