cut·lass
noun/ˈkʌtləs/
/ˈkʌtləs/
- a short sword with a curved metal cutting edge that was used as a weapon by sailors and pirates in the past
（旧时水手和海盗用的）短剑，短弯刀 Word Originlate 16th cent.: from French coutelas, based on Latin cultellus ‘small knife’, diminutive of culter ‘knife, ploughshare’.