/keuhm play"seuhn see/ , n. , pl. complacencies .
1. a feeling of quiet pleasure or security, often while unaware of some potential danger, defect, or the like; self-satisfaction or smug satisfaction with an existing situation, condition, etc.
2. Archaic.
a. friendly civility; inclination to please; complaisance.
b. a civil act.
Also, complacence /keuhm play"seuhns/ .
[ 1635-45; complacentia. See COMPLACENT, -CY ]