bicker[verb]Synonyms: quarrel, argue, disagree, dispute, fight, row 
(informal), squabble, wrangle 
Related Words: battle, 
contend, 
fight, 
war [TahlilGaran] English Synonym Dictionary ▲
 bick‧er /ˈbɪkə $ -ər/ 
 verb [intransitive][
Date: 1200-1300; 
Language: Middle Dutch; 
Origin: bicken 'to attack']
 to argue, especially about something very unimportant: 
 I wish you two would stop bickering.bicker about/over
 They kept bickering over who should answer the phone.—bickering noun [uncountable]  [TahlilGaran] Dictionary of Contemporary English ▲