Couldn't contact [CUSTOM] Spell Checker.

I have previously installed a custom dictionary and spell checker. later I installed the CocoAspell with the language I'd like to use, which was not available with the OS X distribution.

After deleting the old software, as advised by the author, I still have the dictionary reference in the Spelling settings. I.e. the name of the removed dictionary still hangs there, when I right-click and choose Spelling>Spelling.

This confuses all the programs (textedit etc.) which open documents written in the language of the dictionary I want to remove. Thus I get the "Couldn't contact Spell Checker" annoying message.

Please, advise how to remove it.

Again: I have deleted the application, yet the "link" to it remained somewhere in the system settings...