Also a silent always follows a when followed by or , as in ' and ', but there is no case for the combination , with fulfilling this role (as in '). There are no native words in Spanish with the combination nor ; again, is used instead ('). When they appear, usually from Latin idioms such as ', the is not silent, so is never needed after . Prior to the introduction of the 2010 "Common Orthography" words such as ' ('quorum'), ' ('quasar') or ' ('Qatar') were spelled with ; this is no longer so.