\Sag\ (s[a^]g), v. i. [imp. & p. p. {Sagged}; p. pr. & vb.
n. {Sagging}.] [Akin to Sw. sacka to settle, sink down, LG.
sacken, D. zakken. Cf. {Sink}, v. i.]
1. To sink, in the middle, by its weight or under applied
   pressure, below a horizontal line or plane; as, a line or
   cable supported by its ends sags, though tightly drawn;
   the floor of a room sags; hence, to lean, give way, or
   settle from a vertical position; as, a building may sag
   one way or another; a door sags on its hinges.
2. Fig.: To lose firmness or elasticity; to sink; to droop;
   to flag; to bend; to yield, as the mind or spirits, under
   the pressure of care, trouble, doubt, or the like; to be
   unsettled or unbalanced. [R.]
         The mind I sway by, and the heart I bear, Shall
         never sag with doubt nor shake with fear. --Shak.
3. To loiter in walking; to idle along; to drag or droop
   heavily.
{To sag to leeward} (Naut.), to make much leeway by reason of
   the wind, sea, or current; to drift to leeward; -- said of
   a vessel. --Totten.

\Sag\, v. t.
To cause to bend or give way; to load.

\Sag\, n.
State of sinking or bending; sagging.