RATIFY

[rat.i.fy] vt -fied ; -fy.ing [ME ratifien, fr. MF ratifier, fr. ML ratificare, fr. L ratus determined, fr. pp. of reri to calculate--more at reason] (14c): to approve and sanction formally: confirm "~ a treaty" -- rat.i.fi.ca.tion n -- rat.i.fi.er n