hereinafter UK /ˈhɪəɹɪnˈɑːftə/US /ˈhɪɹɪnˈæftɚ/ adverb1 •In the parts of this document, statement, or book that follow; after this[…] this Association has taken into its serious consideration a proposal, emanating from the aforesaid, Samuel Pickwick, Esq., G.C.M.P.C., and three other Pickwickians hereinafter named, […] — 1837