Efforce (?), v. t. [imp. & p. p. Efforced (?); p. pr. & vb. n. Efforcing (?).] [OF. esforcier (F. s'efforcer to exert one's self), LL. exforciare; L. ex + fortis strong. See Force.] To force; to constrain; to compel to yield. [Obs.] Spenser.
[1913 Webster]