Past tense of droop; hung down limply or without energy, like a tired flower.
From Old Norse 'drúpa' meaning to drip or fall. The word entered Middle English around the 13th century and originally referred to liquid falling, then expanded to describe anything hanging down weakly.
The word 'droop' beautifully captures what happens to our bodies when we're exhausted—it's actually the same physical process whether you're talking about a wilted plant or a sleepy student in class!
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