[ ˌdɪskən'sə:t ]
■ verb disturb the composure of; unsettle.
Derivatives
~ed adjective
~edly adverb
~ing adjective
~ingly adverb
~ion noun
~ment noun ( rare ).
Origin
C17 (in the sense 'upset the progress of'): from obs. Fr. desconcerter , from des- (expressing reversal) + concerter 'bring together'.