(ˌ) ̷ ̷| ̷ ̷ adverb
Etymology: Middle English herwith, from Old English hērwith, from hēr here + with
: with this:
a. : with this communication : accompanying this writing or document ; specifically : enclosed in this envelope
you will find my check herewith
b. : with this proof : by this : in this way
herewith the principle is established — A.L.Kroeber