1) Having an independent accent 
• (a.) Retaining the accent; not enclitic; -- said of certain indefinite pronouns and adverbs when used interrogatively, which, when not so used, are ordinarilly enclitic.
Or'tho·tone adjective [ Ortho- + Greek ... tone, accent.] (Gr. Gram.) Retaining the accent; not enclitic; -- said of certain indefinite pronouns and adverbs when used interrogatively, which, when not so used, are ordinarilly enclitic. 
orthotone Having its own accent as an independent word; accented; spec. said of a word ordinarily unaccented (as an enclitic or proclitic) when it retains or takes an independent accent.