Herewith

• POS: Adverb
• HYPHEN: here=with

CIDE DICTIONARY

Herewith, adv. 

 With this.  [1913 Webster]

OXFORD DICTIONARY

Herewith, adv. with this (esp. of an enclosure in a letter etc.).

THESAURUS

Herewith

arm in arm, by, by dint of, by means of, by use of, by virtue of, by way of, cheek by jowl, hand in glove, hand in hand, hereby, in virtue of, on, per, shoulder to shoulder, thanks to, thereby, therewith, therewithal, through, upon, whereby, wherewith, wherewithal, with

ROGET THESAURUS

Herewith

Means

N means, resources, wherewithal, ways and means, capital, revenue, stock in trade, provision, a shot in the locker, appliances, means and appliances, conveniences, cards to play, expedients, two strings to one's bow, sheet anchor, aid, medium, instrumental, mechanical, by means of, with, by what means, by all means, by any means, by some means, wherewith, herewith, therewith, wherewithal, how, through, with the aid of, by the aid of, by the agency of.

Accompaniment

N accompaniment, adjunct, context, appendage, appurtenance, coexistence, concomitance, company, association, companionship, partnership, copartnership, coefficiency, concomitant, accessory, coefficient, companion, buddy, attendant, fellow, associate, friend, colleague, consort, spouse, mate, partner, co-partner, satellite, hanger on, fellow-traveller, shadow, escort, cortege, attribute, accompanying, concomitant, fellow, twin, joint, associated with, coupled with, accessory, attendant, obbligato, with, withal, together with, along with, in company with, hand in hand, side by side, cheek by jowl, cheek by jole, arm in arm, therewith, herewith, and, together, in a body, collectively, noscitur a sociis, virtutis fortuna comes.