firkin
                                        英 ['fɜːkɪn]
美 ['fɝkɪn]
                                        
                                        
                                                                                
                 
                                
                             
                                                
            firkin 小桶fir-, 四分之一,词源同fourth. -kin, 小词后缀。即四分之一桶,用来指一种小桶。
 
                                    
            - firkin (n.)
- "small cask," late 14c., apparently from Middle Dutch *vierdekijn, diminutive of vierde, literally "fourth, fourth part" (see fourth); so called because it usually is the fourth part of a barrel.