qualm Meaning, Definition & Usage
- 
       noun uneasiness about the fitness of an action
       
       
 scruple; misgiving.
 
- 
       noun a mild state of nausea
       
       
 squeamishness; queasiness.
 
WordNet
Qualm noun
Etymology
AS.Definitions
-  Sickness; disease; pestilence; death. Obs.thousand slain and not of qualm ystorve [dead]. Chaucer. 
-  A sudden attack of illness, faintness, or pain; an agony. " Qualms of heartsick agony." Milton.
-  Especially, a sudden sensation of nausea. For who, without a qualm, hath ever looked On holy garbage, though by Homer cooked? Roscommon. 
-  A prick or scruple of conscience; uneasiness of conscience; compunction. Dryden.