A tool or person that stamps or presses down forcefully, or someone who walks heavily with loud steps.
From Middle Low German 'stampen' meaning 'to stamp,' plus the '-er' suffix denoting an agent. The word entered English in the 15th century from Germanic languages.
Horse stampers and industrial stamping presses do completely different jobs at wildly different scales, yet use the exact same word—showing how a simple mechanical action can be applied from tiny to massive contexts.
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