Source : Webster's Revised Unabridged Dictionary (1913)

Sage \Sage\, a. [Compar. {Sager}; superl. {Sagest}.] [F., fr. L.
   sapius (only in nesapius unwise, foolish), fr. sapere to be
   wise; perhaps akin to E. sap. Cf. {Savor}, {Sapient},
   {Insipid}.]
   1. Having nice discernment and powers of judging; prudent;
      grave; sagacious.

            All you sage counselors, hence!       --Shak.

   2. Proceeding from wisdom; well judged; shrewd; well adapted
      to the purpose.

            Commanders, who, cloaking their fear under show of
            sage advice, counseled the general to retreat.
                                                  --Milton.

   3. Grave; serious; solemn. [R.] ``[Great bards] in sage and
      solemn tunes have sung.'' --Milton.