— rancidly , adv. — rancidness, rancidity , n.
/ran"sid/ , adj.
1. having a rank, unpleasant, stale smell or taste, as through decomposition, esp. of fats or oils: rancid butter.
2. (of an odor or taste) rank, unpleasant, and stale: a rancid smell.
3. offensive or nasty; disagreeable.
[ 1640-50; rancidus rank, stinking, equiv. to ranc ( ere ) to be rotten + -idus -ID 4 ]