say it: HIR-with
herewith is an adverb meaning "(formal) by means of this". It is pronounced /ˈhɪɹˈwɪθ/ — HIR-with. It carries one recorded sense.
Definitions, synonyms and semantic relations for herewith 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.