How can I add language that does not exist in language options for spelling check?

08. January 2014 · Write a comment · Categories: Outlook for Mac · Tags: , ,

Hi

I have the Outlook 365 on my iMac updated with Maverick bought in UK, used in Slovakia. When writing an email in Slovak language I do have a problem to spell check it since this language is not included in the Spelling and Grammar language options. Could you please help me, how to install the Slovak language into the list since I do need it every day. 

I am also not able to find the spelling check option in the Word.

Thank you.