[di.rec.to.ry] adj (15c): serving to direct; specif: providing advisory but not compulsory guidance
[2]directory n, pl -ries [ME directorie guide, fr. ML directorium, fr. neut. of LL directorius directorial, fr. L dirigere] (1543) 1 a: a book or collection of directions, rules, or ordinances b: an alphabetical or classified list (as of names and addresses)
2: a body of directors