diff --git a/packages/univint/src/cblas.pas b/packages/univint/src/cblas.pas
index fd87c1e8ca..b8a215c676 100644
--- a/packages/univint/src/cblas.pas
+++ b/packages/univint/src/cblas.pas
@@ -580,7 +580,7 @@ procedure vMultMatMat_32x32( ConstVectorFloat A[32][8]; ConstVectorFloat B[32][8
 {
    -------------------------------------------------------------------------------------------------
    These routines provide optimized support for common small matrix multiplications. They use
-   the scalar floating point unit and have no dependancy on SIMD instructions. They are intended
+   the scalar floating point unit and have no dependency on SIMD instructions. They are intended
    as complements to the AltiVec-only routines above. They do not check for parameter errors.  They just do
    the multiplication as fast as possible.  Matrices are presumed to use row major storage.  Because
    these are all square, column major matrices can be multiplied by simply reversing the parameters.
diff --git a/packages/winunits-base/src/uxtheme.pp b/packages/winunits-base/src/uxtheme.pp
index 1e836d0928..8f162626b8 100644
--- a/packages/winunits-base/src/uxtheme.pp
+++ b/packages/winunits-base/src/uxtheme.pp
@@ -1736,7 +1736,7 @@ var
 implementation
 
 {$ifdef USE_SYNCOBJS}
-// we can't do this due to a circular dependancy between winunits-base and fcl-base
+// we can't do this due to a circular dependency between winunits-base and fcl-base
 uses
   SyncObjs;
 {$endif}
diff --git a/rtl/os2/sysutils.pp b/rtl/os2/sysutils.pp
index b5e6248ed7..181ccf25ae 100644
--- a/rtl/os2/sysutils.pp
+++ b/rtl/os2/sysutils.pp
@@ -777,7 +777,7 @@ end;
 function SetCurrentDir (const NewDir: string): boolean;
 begin
 {$I-}
-{$WARNING Should be rewritten to avoid unit dos dependancy!}
+{$WARNING Should be rewritten to avoid unit dos dependency!}
  ChDir (NewDir);
  Result := (IOResult = 0);
 {$I+}
@@ -787,7 +787,7 @@ end;
 function CreateDir (const NewDir: string): boolean;
 begin
 {$I-}
-{$WARNING Should be rewritten to avoid unit dos dependancy!}
+{$WARNING Should be rewritten to avoid unit dos dependency!}
  MkDir (NewDir);
  Result := (IOResult = 0);
 {$I+}
@@ -797,7 +797,7 @@ end;
 function RemoveDir (const Dir: string): boolean;
 begin
 {$I-}
-{$WARNING Should be rewritten to avoid unit dos dependancy!}
+{$WARNING Should be rewritten to avoid unit dos dependency!}
  RmDir (Dir);
  Result := (IOResult = 0);
  {$I+}
diff --git a/utils/fpdoc/dglobals.pp b/utils/fpdoc/dglobals.pp
index 29b6bf8f54..e85689dce2 100644
--- a/utils/fpdoc/dglobals.pp
+++ b/utils/fpdoc/dglobals.pp
@@ -792,7 +792,7 @@ var
        end
      else
        if cls<>result then
-         writeln(cls.name,'''s dependancy '  ,clname,' could not be resolved');
+         writeln(cls.name,'''s dependency '  ,clname,' could not be resolved');
 end;
 
 function CreateAliasType (alname,clname : string;parentclass:TPasClassType; out cl2 :TPasClassType):TPasAliasType;