a small axe (= a tool with a heavy metal blade for cutting things up) with a short handle 短柄小斧 
Word OriginMiddle English: from Old French hachette, diminutive of hache ‘axe’, from medieval Latin hapia, of Germanic origin.
Idioms
bury the hatchet | bury your differences
to stop not being friendly and become friends again 消除隔阂（重归于好） After not speaking to each other for years, the two brothers decided to bury the hatchet. 在多年不和对方说话后，兄弟俩决定言归于好。