waist
noun
[ weɪst ]
• the part of the human body below the ribs and above the hips, often narrower than the areas above and below.
• "he put an arm around her waist"
• a narrow part in the middle of something, such as a violin or hourglass.
• a blouse or bodice.
Origin:
late Middle English: apparently representing an Old English word from the Germanic root of wax2.