Against

a-genst′, also a-gānst′, prep. opposite to: in opposition to: in contact or collision with: in provision for: in exchange for, instead of: ( B. and Shak. ) by the time that, elliptically for 'against (the time) at which' or 'that I come.' [Formed from again , with genitive ending -es , as whilst from while —the -t being a later addition, as in amongs-t , amids-t , .]