To equip with crampons (spiked metal devices worn on boots) or to secure with crampon-like attachments.
From 'be-' + 'crampon,' itself from French crampon (from Middle Dutch crampe). A crampon is a metal device with spikes used for ice climbing, and the verb means to fit or secure with these devices.
Crampons have ancient roots—the word comes from the same origin as 'cramp,' and medieval soldiers actually used crude crampon-like spikes on boots for mountain warfare. Modern ice climbers use the exact same principle that helped Alpine fighters scale snowy peaks centuries ago.
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