• (v. t.) To force back against the current; as, to restem their backward course. • (v. t.) To stem, or move against; as, to restem a current. Found on http://thinkexist.com/dictionary/meaning/restem/
Re·stem' transitive verb 1. To force back against the current; as, to restem their backward course. Shak. 2. To stem, or move against; as, to restem a current. Found on http://www.encyclo.co.uk/webster/R/64