say it: HITH-ur-too
hitherto is an adverb meaning "used in negative statement to describe a situation that has existed up to this point or up to the present time". It carries one recorded sense.
Definitions, synonyms and semantic relations for hitherto come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.