Past tense of stop; ceased movement, activity, or operation. Brought to a halt or end.
From Old English 'stoppian' meaning 'to block up, plug'. Related to Old High German 'stopfōn' (to plug). The word originally referred to plugging holes but expanded to mean halting any kind of motion or activity.
The evolution from 'plugging a hole' to 'halting motion' is beautifully logical - when you plug something, you stop flow. This explains why we still say 'stop up' a drain, preserving the word's original meaning alongside its broader usage.
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