sag
1. sag \'sag\ vb or sagged; or sag.ging [ME saggen, prob. of Scand origin;
akin to Sw sacka to sag] 1: to droop, sink, or settle from or as if from
pressure or loss of tautne ss 2a: to lose firmness, resiliency, or vigor
{spirits sagging from o verwork} 2b: to fall from a thriving state 3:
DRIFT : to cause to sag
2. sag n 1: a tendency to drift (as of a ship to leeward) 2: a drop or
depression below the surrounding area 3: a temporary economic decline
Webster's English Dictionary